core/org.jetbrains.kotlinx.dataframe.impl.columns/ValueColumnInternal/Wrapper

Wrapper

class Wrapper<T>(val source: ValueColumn<T>) : ValueColumn<T> , ValueColumnInternal<T>

Tiny wrapper for ValueColumns that are not ValueColumnImpl, which can occur in case a user implements the ValueColumn interface.

Constructors

Wrapper

constructor(source: ValueColumn<T>)

Properties

canHaveNA

internal val AnyCol.canHaveNA: Boolean

Is true when this column can have NA values.

canHaveNaN

internal val AnyCol.canHaveNaN: Boolean

hasNulls

val DataColumn<*>.hasNulls: Boolean

indices

val DataColumn<*>.indices: IntRange

isEmpty

internal val AnyBaseCol.isEmpty: Boolean

kind

val DataColumn<*>.kind: ColumnKind

name

val DataColumn<*>.name: String

internal val ColumnReference<*>.name: String

path

val DataColumn<*>.path: ColumnPath

size

val DataColumn<*>.size: Int

internal val AnyBaseCol.size: Int

source

val source: ValueColumn<T>

statisticsCache

val statisticsCache: MutableMap<String, MutableMap<Map<String, Any>, StatisticResult>>

type

val DataColumn<*>.type: KType

typeClass

val DataColumn<*>.typeClass: KClass<*>

values

val <T> DataColumn<T>.values: Iterable<T>

@PublishedApi

internal val <T> BaseColumn<T>.values: Iterable<T>

Functions

addFlag

internal fun <C> ColumnsResolver<C>.addFlag(flag: SortFlag): ColumnSetWithSortFlag<C>

addId

fun DataColumn<*>.addId(columnName: String = "id"): DataFrame<*>

addParent

internal fun <T> BaseColumn<T>.addParent(parent: ColumnGroup<*>): DataColumn<T>

addParentPath

internal fun <T> BaseColumn<T>.addParentPath(path: ColumnPath): ColumnWithPath<T>

addPath

internal fun <T> BaseColumn<T>.addPath(): ColumnWithPath<T>

internal fun <T> BaseColumn<T>.addPath(path: ColumnPath): ColumnWithPath<T>

all

fun <T> DataColumn<T>.all(predicate: Predicate<T>): Boolean

Returns true if all values match the given predicate or values is empty.

allAfterInternal

@PublishedApi

internal inline fun ColumnsResolver<*>.allAfterInternal(crossinline colByPredicate: ColumnFilter<*>): ColumnSet<*>

Returns a new ColumnSet containing all columns after the first column that matches the given predicate.

allBeforeInternal

@PublishedApi

internal inline fun ColumnsResolver<*>.allBeforeInternal(crossinline colByPredicate: ColumnFilter<*>): ColumnSet<*>

Returns a new ColumnSet containing all columns before the first column that satisfies the given predicate.

allColsExceptInternal

internal fun SingleColumn<DataRow<*>>.allColsExceptInternal(other: ColumnsResolver<*>): ColumnSet<Any?>

Returns a new ColumnSet that contains all columns from inside the receiver column group except those specified in the "other" ColumnsResolver.

allColumnsInternal

@PublishedApi

internal fun ColumnsResolver<*>.allColumnsInternal(removePaths: Boolean = false): TransformableColumnSet<*>

If this is a SingleColumn containing a single ColumnGroup (like SingleColumn<AnyRow> or ColumnsSelectionDsl), it returns a (transformable) ColumnSet containing the children of this ColumnGroup, else it simply returns a (transformable) ColumnSet from this (like when this is a ColumnSet).

allFromInternal

@PublishedApi

internal inline fun ColumnsResolver<*>.allFromInternal(crossinline colByPredicate: ColumnFilter<*>): ColumnSet<*>

Returns a column set containing all columns from the internal column set that satisfy the given predicate.

allNulls

fun <C> DataColumn<C>.allNulls(): Boolean

Returns true if all values are null or values is empty.

allUpToInternal

@PublishedApi

internal inline fun ColumnsResolver<*>.allUpToInternal(crossinline colByPredicate: ColumnFilter<*>): ColumnSet<*>

Returns a ColumnSet containing all columns up to (and including) the first column that satisfies the given predicate.

any

fun <T> DataColumn<T>.any(predicate: Predicate<T>): Boolean

Returns true if at least one element in this DataColumn satisfies the given predicate.

asAnyFrameColumn

@PublishedApi

internal fun AnyCol.asAnyFrameColumn(): FrameColumn<*>

asColumnGroup

@JvmName(name = "asColumnGroupUntyped")

fun DataColumn<*>.asColumnGroup(): ColumnGroup<*>

@JvmName(name = "asGroupedT")

fun <T> DataColumn<DataRow<T>>.asColumnGroup(): ColumnGroup<T>

fun <C> SingleColumn<C>.asColumnGroup(): SingleColumn<DataRow<C>>

@JvmName(name = "asColumnGroupDataRow")

fun <C> SingleColumn<DataRow<C>>.asColumnGroup(): SingleColumn<DataRow<C>>

Creates a ColumnAccessor<DataRow<C>> from this. This is especially useful when you want to use ColumnGroup functions in the ColumnsSelectionDsl but your column type is not recognized as a ColumnGroup. If you're not sure whether a column is recognized as ColumnGroup or not, you can always call asColumnGroup and it will return the same type if it is already a ColumnGroup.

asColumnSet

internal fun <C> ColumnsResolver<C>.asColumnSet(): ColumnSet<C>

@PublishedApi

internal fun <C> SingleColumn<C>.asColumnSet(): ColumnSet<C>

asComparable

@JvmName(name = "asComparableNullable")

fun <T> DataColumn<T?>.asComparable(): DataColumn<Comparable<T>?>

fun <T : Any> DataColumn<T>.asComparable(): DataColumn<Comparable<T>>

fun <T> SingleColumn<T>.asComparable(): SingleColumn<Comparable<T>>

asDataFrame

fun <T> DataColumn<DataRow<T>>.asDataFrame(): DataFrame<T>

asFrameColumn

@JvmName(name = "asFrameColumnUntyped")

fun DataColumn<*>.asFrameColumn(): FrameColumn<*>

fun <T> DataColumn<DataFrame<T>>.asFrameColumn(): FrameColumn<T>

asIterable

fun <T> DataColumn<T>.asIterable(): Iterable<T>

Returns an Iterable over the values of this DataColumn.

asNumbers

@JvmName(name = "asNumberAnyNullable")

fun DataColumn<Any?>.asNumbers(): ValueColumn<Number?>

@JvmName(name = "asNumberAny")

fun DataColumn<Any>.asNumbers(): ValueColumn<Number>

@JvmName(name = "asNumbersAnyNullable")

fun SingleColumn<Any?>.asNumbers(): SingleColumn<Number?>

@JvmName(name = "asNumbersAny")

fun SingleColumn<Any>.asNumbers(): SingleColumn<Number>

asSequence

fun <T> DataColumn<T>.asSequence(): Sequence<T>

Returns a Sequence over the values of this DataColumn.

assertIsComparable

internal fun <T> DataColumn<T>.assertIsComparable(): DataColumn<T>

asValueColumn

fun DataColumn<*>.asValueColumn(): ValueColumn<*>

internal fun <T> DataColumn<T>.asValueColumn(): ValueColumn<T>

asValues

internal fun <T> AnyCol.asValues(): ValueColumn<T>

between

fun <T : Comparable<T>> DataColumn<T>.between(left: T, right: T, includeBoundaries: Boolean = true): DataColumn<Boolean>

Returns a DataColumn of Boolean values indicating whether each element in this column lies between left and right.

cast

fun <T> DataColumn<*>.cast(): DataColumn<T>

fun <C> ColumnReference<*>.cast(): ColumnReference<C>

fun <C> ColumnsResolver<*>.cast(): ColumnsResolver<C>

fun <C> SingleColumn<*>.cast(): SingleColumn<C>

fun <T> ValueColumn<*>.cast(): ValueColumn<T>

castToNotNullable

fun <T> DataColumn<T?>.castToNotNullable(): DataColumn<T>

fun <T> ColumnReference<T?>.castToNotNullable(): ColumnReference<T>

castToNullable

fun <T> DataColumn<T>.castToNullable(): DataColumn<T?>

fun <T> ColumnReference<T>.castToNullable(): ColumnReference<T?>

changeType

open override fun changeType(type: KType): ValueColumn<T>

Changes column type. Doesn't change column values.

checkEquals

internal fun <T> BaseColumn<T>.checkEquals(other: Any?): Boolean

chunked

fun <T> DataColumn<T>.chunked(size: Int): ValueColumn<List<T>>

Groups consecutive values of this DataColumn into lists of at most size elements.

fun <T> DataColumn<DataRow<T>>.chunked(size: Int): FrameColumn<T>

Splits a DataColumn of DataRow into a FrameColumn of sub-dataframes with up to size rows in each chunk.

colsAtAnyDepthInternal

internal fun ColumnsResolver<*>.colsAtAnyDepthInternal(predicate: ColumnFilter<*>): ColumnSet<*>

Returns all columns inside this ColumnsResolver at any depth if they satisfy the given predicate.

colsInternal

@PublishedApi

internal inline fun ColumnsResolver<*>.colsInternal(crossinline predicate: ColumnFilter<*>): TransformableColumnSet<*>

If this ColumnsResolver is a SingleColumn, it returns a new ColumnSet containing the columns inside of this SingleColumn that match the given predicate.

internal fun ColumnsResolver<*>.colsInternal(indices: IntArray): TransformableColumnSet<*>

internal fun ColumnsResolver<*>.colsInternal(range: IntRange): TransformableColumnSet<*>

internal fun SingleColumn<DataRow<*>>.colsInternal(refs: Iterable<ColumnReference<*>>): ColumnSet<*>

colsOf

inline fun <reified C> SingleColumn<DataRow<*>>.colsOf(noinline filter: (ColumnWithPath<C>) -> Boolean = { true }): ColumnSet<C>

fun <C> SingleColumn<DataRow<*>>.colsOf(type: KType, filter: (ColumnWithPath<C>) -> Boolean = { true }): ColumnSet<C>

Returns a ColumnSet of columns from this that are a subtype of the given type C, optionally filtered by filter.

colsOfInternal

internal inline fun <C> ColumnsResolver<*>.colsOfInternal(type: KType, crossinline filter: ColumnFilter<C>): TransformableColumnSet<C>

If this ColumnsResolver is a SingleColumn, it returns a new ColumnSet containing the columns inside of this SingleColumn that match the given filter and are the given type.

column

fun <T> ColumnReference<DataRow<*>>.column(): ColumnDelegate<T>

fun <T> ColumnReference<DataRow<*>>.column(name: String): ColumnAccessor<T>

fun <T> ColumnReference<DataRow<*>>.~~column~~(property: KProperty<T>): ColumnAccessor<T>

fun <T> ColumnReference<DataRow<*>>.column(path: ColumnPath): ColumnAccessor<T>

columnGroup

fun ColumnReference<DataRow<*>>.columnGroup(): ColumnDelegate<DataRow<*>>

fun ColumnReference<DataRow<*>>.columnGroup(name: String): ColumnAccessor<DataRow<*>>

fun <T> ColumnReference<DataRow<*>>.~~columnGroup~~(property: KProperty<T>): ColumnAccessor<DataRow<T>>

@JvmName(name = "columnGroupDataRowKProperty")

fun <T> ColumnReference<DataRow<*>>.~~columnGroup~~(property: KProperty<DataRow<T>>): ColumnAccessor<DataRow<T>>

fun ColumnReference<DataRow<*>>.columnGroup(path: ColumnPath): ColumnAccessor<DataRow<*>>

columnGroupsInternal

internal inline fun ColumnsResolver<*>.columnGroupsInternal(crossinline filter: (ColumnGroup<*>) -> Boolean): ColumnSet<DataRow<*>>

Returns a ColumnSet containing the column groups that satisfy the given filter.

columnsOfKindInternal

internal inline fun ColumnsResolver<*>.columnsOfKindInternal(kinds: Set<ColumnKind>, crossinline filter: ColumnFilter<*>): TransformableColumnSet<*>

Returns a TransformableColumnSet containing the columns of given kind(s) that satisfy the given filter.

concat

fun <T> DataColumn<Collection<T>>.concat(): List<T>

Returns a List containing the elements of every Collection stored in this column.

fun <T> DataColumn<DataFrame<T>>.concat(): DataFrame<T>

Returns a DataFrame containing the rows from every DataFrame stored in this column.

fun <T> DataColumn<T>.concat(vararg other: DataColumn<T>): DataColumn<T>

Returns a DataColumn containing the values of this column followed by the values of other.

contains

open operator override fun contains(value: T): Boolean

convertTo

inline fun <reified C> DataColumn<*>.convertTo(): DataColumn<C>

Converts values in this column to the specified type C.

fun DataColumn<*>.convertTo(newType: KType): DataColumn<*>

Converts values in this column to the specified type.

inline fun <reified C> DataColumn<String?>.convertTo(parserOptions: ParserOptions? = null): DataColumn<C>

Converts values in this String column to the specified type C.

fun DataColumn<String?>.convertTo(newType: KType, parserOptions: ParserOptions? = null): DataColumn<*>

Converts values in this String column to the specified type.

convertToBigDecimal

fun <T : Any> DataColumn<T?>.convertToBigDecimal(): DataColumn<BigDecimal?>

Converts values in this column to BigDecimal. Preserves null values.

@JvmName(name = "convertToBigDecimalFromT")

fun <T : Any> DataColumn<T>.convertToBigDecimal(): DataColumn<BigDecimal>

Converts values in this column to BigDecimal.

convertToBigInteger

fun <T : Any> DataColumn<T?>.convertToBigInteger(): DataColumn<BigInteger?>

Converts values in this column to BigInteger. Preserves null values.

@JvmName(name = "convertToBigIntegerFromT")

fun <T : Any> DataColumn<T>.convertToBigInteger(): DataColumn<BigInteger>

Converts values in this column to BigInteger.

convertToBoolean

fun <T : Any> DataColumn<T?>.convertToBoolean(): DataColumn<Boolean?>

Converts values in this column to Boolean. Preserves null values.

@JvmName(name = "convertToBooleanFromT")

fun <T : Any> DataColumn<T>.convertToBoolean(): DataColumn<Boolean>

Converts values in this column to Boolean.

convertToByte

fun <T : Any> DataColumn<T?>.convertToByte(): DataColumn<Byte?>

Converts values in this column to Byte. Preserves null values.

@JvmName(name = "convertToByteFromT")

fun <T : Any> DataColumn<T>.convertToByte(): DataColumn<Byte>

Converts values in this column to Byte.

convertToDateTimeComponents

@JvmName(name = "convertToDateTimeComponentsFromStringNullablePattern")

@FormatStringsInDatetimeFormats

fun DataColumn<String?>.convertToDateTimeComponents(pattern: String): DataColumn<DateTimeComponents?>

@JvmName(name = "convertToDateTimeComponentsFromStringNullable")

fun DataColumn<String?>.convertToDateTimeComponents(format: DateTimeFormat<DateTimeComponents>? = null): DataColumn<DateTimeComponents?>

Converts values in this String column to DateTimeComponents. Preserves null values.

@JvmName(name = "convertToDateTimeComponentsFromStringPattern")

@FormatStringsInDatetimeFormats

fun DataColumn<String>.convertToDateTimeComponents(pattern: String): DataColumn<DateTimeComponents>

@JvmName(name = "convertToDateTimeComponentsFromString")

fun DataColumn<String>.convertToDateTimeComponents(format: DateTimeFormat<DateTimeComponents>? = null): DataColumn<DateTimeComponents>

Converts values in this String column to DateTimeComponents.

convertToDeprecatedInstant

@JvmName(name = "convertToDeprecatedInstantFromStringNullable")

fun DataColumn<String?>.~~convertToDeprecatedInstant~~(): DataColumn<Instant?>

Converts values in this String column to the deprecated kotlinx.datetime.Instant. Preserves null values.

fun DataColumn<String>.~~convertToDeprecatedInstant~~(): DataColumn<Instant>

Converts values in this String column to the deprecated kotlinx.datetime.Instant.

convertToDouble

fun <T : Any> DataColumn<T?>.convertToDouble(): DataColumn<Double?>

Converts values in this column to Double. Preserves null values.

@JvmName(name = "convertToDoubleFromT")

fun <T : Any> DataColumn<T>.convertToDouble(): DataColumn<Double>

Converts values in this column to Double.

@JvmName(name = "convertToDoubleFromStringNullable")

fun DataColumn<String?>.convertToDouble(locale: Locale? = null): DataColumn<Double?>

@JvmName(name = "convertToDoubleFromString")

fun DataColumn<String>.convertToDouble(locale: Locale? = null): DataColumn<Double>

@JvmName(name = "convertToDoubleFromStringNullable")

fun DataColumn<String?>.convertToDouble(locale: Locale? = null, nullStrings: Set<String>?, useFastDoubleParser: Boolean?): DataColumn<Double?>

@JvmName(name = "convertToDoubleFromString")

fun DataColumn<String>.convertToDouble(locale: Locale? = null, nullStrings: Set<String>?, useFastDoubleParser: Boolean?): DataColumn<Double>

Converts values in this String column to Double considering locale (number format).

convertToDuration

fun <T : Any> DataColumn<T?>.convertToDuration(): DataColumn<Duration?>

Converts values in this column to Duration. Preserves null values.

@JvmName(name = "convertToDurationFromT")

fun <T : Any> DataColumn<T>.convertToDuration(): DataColumn<Duration>

Converts values in this column to Duration.

convertToFloat

fun <T : Any> DataColumn<T?>.convertToFloat(): DataColumn<Float?>

Converts values in this column to Float. Preserves null values.

@JvmName(name = "convertToFloatFromT")

fun <T : Any> DataColumn<T>.convertToFloat(): DataColumn<Float>

Converts values in this column to Float.

convertToInstant

@JvmName(name = "convertToInstantFromStringNullable")

fun DataColumn<String?>.~~convertToInstant~~(): DataColumn<Instant?>

fun DataColumn<String>.~~convertToInstant~~(): DataColumn<Instant>

Deprecated:

convertToInt

fun <T : Any> DataColumn<T?>.convertToInt(): DataColumn<Int?>

Converts values in this column to Int. Preserves null values.

@JvmName(name = "convertToIntFromT")

fun <T : Any> DataColumn<T>.convertToInt(): DataColumn<Int>

Converts values in this column to Int.

convertToJavaDuration

fun <T : Any> DataColumn<T?>.convertToJavaDuration(): DataColumn<Duration?>

Converts values in this column to JavaDuration. Preserves null values.

@JvmName(name = "convertToJavaDurationFromT")

fun <T : Any> DataColumn<T>.convertToJavaDuration(): DataColumn<Duration>

Converts values in this column to JavaDuration.

convertToJavaInstant

fun <T : Any> DataColumn<T?>.convertToJavaInstant(): DataColumn<Instant?>

Converts values in this column to JavaInstant. Preserves null values.

@JvmName(name = "convertToJavaInstantFromT")

fun <T : Any> DataColumn<T>.convertToJavaInstant(): DataColumn<Instant>

Converts values in this column to JavaInstant.

convertToJavaLocalDate

fun <T : Any> DataColumn<T?>.convertToJavaLocalDate(): DataColumn<LocalDate?>

Converts values in this column to JavaLocalDate. Preserves null values.

@JvmName(name = "convertToJavaLocalDateFromT")

fun <T : Any> DataColumn<T>.convertToJavaLocalDate(): DataColumn<LocalDate>

Converts values in this column to JavaLocalDate.

@JvmName(name = "convertToJavaLocalDateFromStringNullable")

fun DataColumn<String?>.convertToJavaLocalDate(formatter: DateTimeFormatter? = null, locale: Locale? = null): DataColumn<LocalDate?>

@JvmName(name = "convertToJavaLocalDateFromStringNullablePattern")

fun DataColumn<String?>.convertToJavaLocalDate(pattern: String, locale: Locale? = null): DataColumn<LocalDate?>

Converts values in this nullable String column to JavaLocalDate. Preserves null values.

@JvmName(name = "convertToJavaLocalDateFromString")

fun DataColumn<String>.convertToJavaLocalDate(formatter: DateTimeFormatter? = null, locale: Locale? = null): DataColumn<LocalDate>

@JvmName(name = "convertToJavaLocalDateFromStringPattern")

fun DataColumn<String>.convertToJavaLocalDate(pattern: String, locale: Locale? = null): DataColumn<LocalDate>

Converts values in this String column to JavaLocalDate.

convertToJavaLocalDateTime

fun <T : Any> DataColumn<T?>.convertToJavaLocalDateTime(): DataColumn<LocalDateTime?>

Converts values in this column to JavaLocalDateTime. Preserves null values.

@JvmName(name = "convertToJavaLocalDateTimeFromT")

fun <T : Any> DataColumn<T>.convertToJavaLocalDateTime(): DataColumn<LocalDateTime>

Converts values in this column to JavaLocalDateTime.

@JvmName(name = "convertToJavaLocalDateTimeFromStringNullable")

fun DataColumn<String?>.convertToJavaLocalDateTime(formatter: DateTimeFormatter? = null, locale: Locale? = null): DataColumn<LocalDateTime?>

@JvmName(name = "convertToJavaLocalDateTimeFromStringNullablePattern")

fun DataColumn<String?>.convertToJavaLocalDateTime(pattern: String, locale: Locale? = null): DataColumn<LocalDateTime?>

Converts values in this nullable String column to JavaLocalDateTime. Preserves null values.

@JvmName(name = "convertToJavaLocalDateTimeFromString")

fun DataColumn<String>.convertToJavaLocalDateTime(formatter: DateTimeFormatter? = null, locale: Locale? = null): DataColumn<LocalDateTime>

@JvmName(name = "convertToJavaLocalDateTimeFromStringPattern")

fun DataColumn<String>.convertToJavaLocalDateTime(pattern: String, locale: Locale? = null): DataColumn<LocalDateTime>

Converts values in this String column to JavaLocalDateTime.

convertToJavaLocalTime

fun <T : Any> DataColumn<T?>.convertToJavaLocalTime(): DataColumn<LocalTime?>

Converts values in this column to JavaLocalTime. Preserves null values.

@JvmName(name = "convertToJavaLocalTimeFromT")

fun <T : Any> DataColumn<T>.convertToJavaLocalTime(): DataColumn<LocalTime>

Converts values in this column to JavaLocalTime.

@JvmName(name = "convertToJavaLocalTimeFromStringNullable")

fun DataColumn<String?>.convertToJavaLocalTime(formatter: DateTimeFormatter? = null, locale: Locale? = null): DataColumn<LocalTime?>

@JvmName(name = "convertToJavaLocalTimeFromStringNullablePattern")

fun DataColumn<String?>.convertToJavaLocalTime(pattern: String, locale: Locale? = null): DataColumn<LocalTime?>

Converts values in this nullable String column to JavaLocalTime. Preserves null values.

@JvmName(name = "convertToJavaLocalTimeFromString")

fun DataColumn<String>.convertToJavaLocalTime(formatter: DateTimeFormatter? = null, locale: Locale? = null): DataColumn<LocalTime>

@JvmName(name = "convertToJavaLocalTimeFromStringPattern")

fun DataColumn<String>.convertToJavaLocalTime(pattern: String, locale: Locale? = null): DataColumn<LocalTime>

Converts values in this String column to JavaLocalTime.

convertToLocalDate

fun <T : Any> DataColumn<T?>.convertToLocalDate(): DataColumn<LocalDate?>

Converts values in this column to LocalDate. Preserves null values.

@JvmName(name = "convertToLocalDateFromT")

fun <T : Any> DataColumn<T>.convertToLocalDate(): DataColumn<LocalDate>

Converts values in this column to LocalDate.

@JvmName(name = "convertToLocalDateFromDateTimeComponentsNullable")

fun DataColumn<DateTimeComponents?>.convertToLocalDate(): DataColumn<LocalDate?>

Converts values in this DateTimeComponents column to LocalDate. Preserves null values.

@JvmName(name = "convertToLocalDateFromDateTimeComponents")

fun DataColumn<DateTimeComponents>.convertToLocalDate(): DataColumn<LocalDate>

Converts values in this DateTimeComponents column to LocalDate.

@JvmName(name = "convertToLocalDateFromIntNullable")

fun DataColumn<Int?>.convertToLocalDate(zone: TimeZone = defaultTimeZone): DataColumn<LocalDate?>

Converts values in this Int column to LocalDate. Preserves null values.

@JvmName(name = "convertToLocalDateFromInt")

fun DataColumn<Int>.convertToLocalDate(zone: TimeZone = defaultTimeZone): DataColumn<LocalDate>

Converts values in this Int column to LocalDate.

fun DataColumn<Long?>.convertToLocalDate(zone: TimeZone = defaultTimeZone): DataColumn<LocalDate?>

Converts values in this Long column to LocalDate. Preserves null values.

@JvmName(name = "convertToLocalDateFromLong")

fun DataColumn<Long>.convertToLocalDate(zone: TimeZone = defaultTimeZone): DataColumn<LocalDate>

Converts values in this Long column to LocalDate.

@JvmName(name = "convertToLocalDateFromStringNullablePattern")

@FormatStringsInDatetimeFormats

fun DataColumn<String?>.convertToLocalDate(pattern: String): DataColumn<LocalDate?>

@JvmName(name = "convertToLocalDateFromStringNullable")

fun DataColumn<String?>.convertToLocalDate(format: DateTimeFormat<LocalDate>? = null): DataColumn<LocalDate?>

Converts values in this String column to LocalDate. Preserves null values.

@JvmName(name = "convertToLocalDateFromStringPattern")

@FormatStringsInDatetimeFormats

fun DataColumn<String>.convertToLocalDate(pattern: String): DataColumn<LocalDate>

@JvmName(name = "convertToLocalDateFromString")

fun DataColumn<String>.convertToLocalDate(format: DateTimeFormat<LocalDate>? = null): DataColumn<LocalDate>

Converts values in this String column to LocalDate.

@JvmName(name = "convertToLocalDateFromStringNullable")

fun DataColumn<String?>.~~convertToLocalDate~~(pattern: String? = null, locale: Locale? = null): DataColumn<LocalDate?>

@JvmName(name = "convertToLocalDateFromString")

fun DataColumn<String>.~~convertToLocalDate~~(pattern: String? = null, locale: Locale? = null): DataColumn<LocalDate>

convertToLocalDateTime

fun <T : Any> DataColumn<T?>.convertToLocalDateTime(): DataColumn<LocalDateTime?>

Converts values in this column to LocalDateTime. Preserves null values.

@JvmName(name = "convertToLocalDateTimeFromT")

fun <T : Any> DataColumn<T>.convertToLocalDateTime(): DataColumn<LocalDateTime>

Converts values in this column to LocalDateTime.

@JvmName(name = "convertToLocalDateTimeFromDateTimeComponentsNullable")

fun DataColumn<DateTimeComponents?>.convertToLocalDateTime(): DataColumn<LocalDateTime?>

Converts values in this DateTimeComponents column to LocalDateTime. Preserves null values.

@JvmName(name = "convertToLocalDateTimeFromDateTimeComponents")

fun DataColumn<DateTimeComponents>.convertToLocalDateTime(): DataColumn<LocalDateTime>

Converts values in this DateTimeComponents column to LocalDateTime.

@JvmName(name = "convertToLocalDateTimeFromIntNullable")

fun DataColumn<Int?>.convertToLocalDateTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalDateTime?>

Converts values in this Int column to LocalDateTime. Preserves null values.

@JvmName(name = "convertToLocalDateTimeFromInt")

fun DataColumn<Int>.convertToLocalDateTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalDateTime>

Converts values in this Int column to LocalDateTime.

fun DataColumn<Long?>.convertToLocalDateTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalDateTime?>

Converts values in this Long column to LocalDateTime. Preserves null values.

@JvmName(name = "convertToLocalDateTimeFromLong")

fun DataColumn<Long>.convertToLocalDateTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalDateTime>

Converts values in this Long column to LocalDateTime.

@JvmName(name = "convertToLocalDateTimeFromStringNullablePattern")

@FormatStringsInDatetimeFormats

fun DataColumn<String?>.convertToLocalDateTime(pattern: String): DataColumn<LocalDateTime?>

@JvmName(name = "convertToLocalDateTimeFromStringNullable")

fun DataColumn<String?>.convertToLocalDateTime(format: DateTimeFormat<LocalDateTime>? = null): DataColumn<LocalDateTime?>

Converts values in this String column to LocalDateTime. Preserves null values.

@JvmName(name = "convertToLocalDateTimeFromStringPattern")

@FormatStringsInDatetimeFormats

fun DataColumn<String>.convertToLocalDateTime(pattern: String): DataColumn<LocalDateTime>

@JvmName(name = "convertToLocalDateTimeFromString")

fun DataColumn<String>.convertToLocalDateTime(format: DateTimeFormat<LocalDateTime>? = null): DataColumn<LocalDateTime>

Converts values in this String column to LocalDateTime.

@JvmName(name = "convertToLocalDateTimeFromStdlibInstantNullable")

fun DataColumn<Instant?>.convertToLocalDateTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalDateTime?>

Converts values in this kotlin.time.Instant column to LocalDateTime. Preserves null values.

@JvmName(name = "convertToLocalDateTimeFromStdlibInstant")

fun DataColumn<Instant>.convertToLocalDateTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalDateTime>

Converts values in this kotlin.time.Instant column to LocalDateTime.

@JvmName(name = "convertToLocalDateTimeFromDeprecatedInstantNullable")

fun DataColumn<Instant?>.convertToLocalDateTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalDateTime?>

Converts values in this kotlinx.datetime.Instant column to LocalDateTime. Preserves null values.

@JvmName(name = "convertToLocalDateTimeFromDeprecatedInstant")

fun DataColumn<Instant>.convertToLocalDateTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalDateTime>

Converts values in this kotlinx.datetime.Instant column to LocalDateTime.

@JvmName(name = "convertToLocalDateTimeFromStringNullable")

fun DataColumn<String?>.~~convertToLocalDateTime~~(pattern: String? = null, locale: Locale? = null): DataColumn<LocalDateTime?>

@JvmName(name = "convertToLocalDateTimeFromString")

fun DataColumn<String>.~~convertToLocalDateTime~~(pattern: String? = null, locale: Locale? = null): DataColumn<LocalDateTime>

convertToLocalTime

fun <T : Any> DataColumn<T?>.convertToLocalTime(): DataColumn<LocalTime?>

Converts values in this column to LocalTime. Preserves null values.

@JvmName(name = "convertToLocalTimeFromT")

fun <T : Any> DataColumn<T>.convertToLocalTime(): DataColumn<LocalTime>

Converts values in this column to LocalTime.

@JvmName(name = "convertToLocalTimeFromDateTimeComponentsNullable")

fun DataColumn<DateTimeComponents?>.convertToLocalTime(): DataColumn<LocalTime?>

Converts values in this DateTimeComponents column to LocalTime. Preserves null values.

@JvmName(name = "convertToLocalTimeFromDateTimeComponents")

fun DataColumn<DateTimeComponents>.convertToLocalTime(): DataColumn<LocalTime>

Converts values in this DateTimeComponents column to LocalTime.

@JvmName(name = "convertToLocalTimeIntNullable")

fun DataColumn<Int?>.convertToLocalTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalTime?>

Converts values in this Int column to LocalTime. Preserves null values.

@JvmName(name = "convertToLocalTimeFromInt")

fun DataColumn<Int>.convertToLocalTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalTime>

Converts values in this Int column to LocalTime.

fun DataColumn<Long?>.convertToLocalTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalTime?>

Converts values in this Long column to LocalTime. Preserves null values.

@JvmName(name = "convertToLocalTimeFromLong")

fun DataColumn<Long>.convertToLocalTime(zone: TimeZone = defaultTimeZone): DataColumn<LocalTime>

Converts values in this Long column to LocalTime.

@JvmName(name = "convertToLocalTimeFromStringNullablePattern")

@FormatStringsInDatetimeFormats

fun DataColumn<String?>.convertToLocalTime(pattern: String): DataColumn<LocalTime?>

@JvmName(name = "convertToLocalTimeFromStringNullable")

fun DataColumn<String?>.convertToLocalTime(format: DateTimeFormat<LocalTime>? = null): DataColumn<LocalTime?>

Converts values in this String column to LocalTime. Preserves null values.

@JvmName(name = "convertToLocalTimeFromStringPattern")

@FormatStringsInDatetimeFormats

fun DataColumn<String>.convertToLocalTime(pattern: String): DataColumn<LocalTime>

@JvmName(name = "convertToLocalTimeFromString")

fun DataColumn<String>.convertToLocalTime(format: DateTimeFormat<LocalTime>? = null): DataColumn<LocalTime>

Converts values in this String column to LocalTime.

@JvmName(name = "convertToLocalTimeFromStringNullable")

fun DataColumn<String?>.~~convertToLocalTime~~(pattern: String? = null, locale: Locale? = null): DataColumn<LocalTime?>

@JvmName(name = "convertToLocalTimeFromString")

fun DataColumn<String>.~~convertToLocalTime~~(pattern: String? = null, locale: Locale? = null): DataColumn<LocalTime>

convertToLong

fun <T : Any> DataColumn<T?>.convertToLong(): DataColumn<Long?>

Converts values in this column to Long. Preserves null values.

@JvmName(name = "convertToLongFromT")

fun <T : Any> DataColumn<T>.convertToLong(): DataColumn<Long>

Converts values in this column to Long.

convertToShort

fun <T : Any> DataColumn<T?>.convertToShort(): DataColumn<Short?>

Converts values in this column to Short. Preserves null values.

@JvmName(name = "convertToShortFromT")

fun <T : Any> DataColumn<T>.convertToShort(): DataColumn<Short>

Converts values in this column to Short.

convertToStdlibInstant

@JvmName(name = "convertToStdlibInstantFromStringNullable")

fun DataColumn<String?>.convertToStdlibInstant(): DataColumn<Instant?>

Converts values in this String column to kotlin.time.Instant. Preserves null values.

fun DataColumn<String>.convertToStdlibInstant(): DataColumn<Instant>

Converts values in this String column to kotlin.time.Instant.

@JvmName(name = "convertToStdlibInstantFromDeprecatedInstantNullable")

fun DataColumn<Instant?>.convertToStdlibInstant(): DataColumn<Instant?>

Converts values in this kotlinx.datetime.Instant column to kotlin.time.Instant. Preserves null values.

@JvmName(name = "convertToStdlibInstantFromDeprecatedInstant")

fun DataColumn<Instant>.convertToStdlibInstant(): DataColumn<Instant>

Converts values in this kotlinx.datetime.Instant column to kotlin.time.Instant.

@JvmName(name = "convertToStdlibInstantFromDateTimeComponentsNullable")

fun DataColumn<DateTimeComponents?>.convertToStdlibInstant(): DataColumn<Instant?>

Converts values in this DateTimeComponents column to kotlin.time.Instant. Preserves null values.

@JvmName(name = "convertToStdlibInstantFromDateTimeComponents")

fun DataColumn<DateTimeComponents>.convertToStdlibInstant(): DataColumn<Instant>

Converts values in this DateTimeComponents column to kotlin.time.Instant.

convertToString

fun <T : Any> DataColumn<T?>.convertToString(): DataColumn<String?>

Converts values in this column to String. Preserves null values.

@JvmName(name = "convertToStringFromT")

fun <T : Any> DataColumn<T>.convertToString(): DataColumn<String>

Converts values in this column to String.

convertToTypeImpl

internal fun AnyCol.convertToTypeImpl(to: KType, parserOptions: ParserOptions?): AnyCol

convertToURL

@JvmName(name = "convertToURLFromStringNullable")

fun DataColumn<String?>.~~convertToURL~~(): DataColumn<URL?>

fun DataColumn<String>.~~convertToURL~~(): DataColumn<URL>

convertToUrl

@JvmName(name = "convertToUrlFromStringNullable")

fun DataColumn<String?>.convertToUrl(): DataColumn<URL?>

Converts values in this String column to an URL. Preserves null values.

fun DataColumn<String>.convertToUrl(): DataColumn<URL>

Converts values in this String column to an URL.

convertToUtcOffset

@JvmName(name = "convertToUtcOffsetNullable")

fun DataColumn<DateTimeComponents?>.convertToUtcOffset(): DataColumn<UtcOffset?>

Converts values in this DateTimeComponents column to UtcOffset. Preserves null values.

fun DataColumn<DateTimeComponents>.convertToUtcOffset(): DataColumn<UtcOffset>

Converts values in this DateTimeComponents column to UtcOffset.

convertToYearMonth

@JvmName(name = "convertToYearMonthNullable")

fun DataColumn<DateTimeComponents?>.convertToYearMonth(): DataColumn<YearMonth?>

Converts values in this DateTimeComponents column to YearMonth. Preserves null values.

fun DataColumn<DateTimeComponents>.convertToYearMonth(): DataColumn<YearMonth>

Converts values in this DateTimeComponents column to YearMonth.

count

fun <T> DataColumn<T>.count(predicate: Predicate<T>? = null): Int

Counts the elements in this DataColumn that satisfy a given predicate or returns the total count if no predicate is provided.

countDistinct

open override fun countDistinct(): Int

createComparator

internal fun AnyCol.createComparator(nullsLast: Boolean): Comparator<Int>

cumSum

fun <T : Number?> DataColumn<T>.cumSum(skipNA: Boolean = defaultCumSumSkipNA): DataColumn<T>

@JvmName(name = "cumSumNullableByte")

fun DataColumn<Byte?>.cumSum(skipNA: Boolean = defaultCumSumSkipNA): DataColumn<Int?>

@JvmName(name = "cumSumByte")

fun DataColumn<Byte>.cumSum(skipNA: Boolean = defaultCumSumSkipNA): DataColumn<Int>

@JvmName(name = "cumSumDouble")

fun DataColumn<Double?>.cumSum(skipNA: Boolean = defaultCumSumSkipNA): DataColumn<Double>

@JvmName(name = "cumSumFloat")

fun DataColumn<Float?>.cumSum(skipNA: Boolean = defaultCumSumSkipNA): DataColumn<Float>

@JvmName(name = "cumSumNullableShort")

fun DataColumn<Short?>.cumSum(skipNA: Boolean = defaultCumSumSkipNA): DataColumn<Int?>

@JvmName(name = "cumSumShort")

fun DataColumn<Short>.cumSum(skipNA: Boolean = defaultCumSumSkipNA): DataColumn<Int>

Computes the cumulative sums of the values in each column from the DataColumn from the first cell to the last cell.

cumSumImpl

@JvmName(name = "byteCumsum")

internal fun DataColumn<Byte>.cumSumImpl(): DataColumn<Int>

@JvmName(name = "intCumsum")

internal fun DataColumn<Int>.cumSumImpl(): DataColumn<Int>

@JvmName(name = "longCumsum")

internal fun DataColumn<Long>.cumSumImpl(): DataColumn<Long>

@JvmName(name = "shortCumsum")

internal fun DataColumn<Short>.cumSumImpl(): DataColumn<Int>

@JvmName(name = "cumsumByteNullable")

internal fun DataColumn<Byte?>.cumSumImpl(skipNA: Boolean): DataColumn<Int?>

@JvmName(name = "cumsumDoubleNullable")

internal fun DataColumn<Double?>.cumSumImpl(skipNA: Boolean): DataColumn<Double>

@JvmName(name = "doubleCumsum")

internal fun DataColumn<Double>.cumSumImpl(skipNA: Boolean): DataColumn<Double>

internal fun DataColumn<Float?>.cumSumImpl(skipNA: Boolean): DataColumn<Float>

@JvmName(name = "floatCumsum")

internal fun DataColumn<Float>.cumSumImpl(skipNA: Boolean): DataColumn<Float>

@JvmName(name = "intCumsum")

internal fun DataColumn<Int?>.cumSumImpl(skipNA: Boolean): DataColumn<Int?>

@JvmName(name = "cumsumLongNullable")

internal fun DataColumn<Long?>.cumSumImpl(skipNA: Boolean): DataColumn<Long?>

@JvmName(name = "cumsumShortNullable")

internal fun DataColumn<Short?>.cumSumImpl(skipNA: Boolean): DataColumn<Int?>

internal fun DataColumn<Number?>.cumSumImpl(type: KType, skipNA: Boolean): DataColumn<Number?>

defaultValue

open override fun defaultValue(): T?

describe

fun <T> DataColumn<T>.describe(): DataFrame<ColumnDescription>

Computes descriptive statistics for a given DataColumn, returning a DataFrame with key summary metrics.

distinct

open override fun distinct(): ValueColumn<T>

div

operator fun DataColumn<BigDecimal>.div(value: BigDecimal): DataColumn<BigDecimal>

operator fun DataColumn<BigInteger>.div(value: BigInteger): DataColumn<BigInteger>

operator fun DataColumn<Double>.div(value: Double): DataColumn<Double>

@JvmName(name = "divDouble")

operator fun DataColumn<Double>.div(value: Int): DataColumn<Double>

@JvmName(name = "divIntNullable")

operator fun DataColumn<Int?>.div(value: Int): DataColumn<Int?>

@JvmName(name = "divInt")

operator fun DataColumn<Int>.div(value: Double): DataColumn<Double>

operator fun DataColumn<Int>.div(value: Int): DataColumn<Int>

operator fun DataColumn<Long>.div(value: Long): DataColumn<Long>

Returns a DataColumn containing the results of dividing each element of this DataColumn by value.

operator fun ColumnReference<Int>.div(value: Int): ColumnReference<Int>

Returns a ColumnReference containing the results of dividing each element of this ColumnReference by value.

drop

inline fun <T> DataColumn<T>.drop(predicate: Predicate<T>): DataColumn<T>

Returns a DataColumn containing only the values that do not match the given predicate.

fun <T> DataColumn<T>.drop(n: Int): DataColumn<T>

Returns a DataColumn containing all values of this DataColumn except the first n values.

dropLast

fun <T> DataColumn<T>.dropLast(n: Int = 1): DataColumn<T>

Returns a DataColumn containing all values of this DataColumn except the last n values.

dropNA

fun <T> DataColumn<T?>.dropNA(): DataColumn<T>

Removes NA values from this DataColumn, adjusting the type accordingly.

dropNaNs

fun <T> DataColumn<T>.dropNaNs(): DataColumn<T>

Removes NaN values from this DataColumn, adjusting the type accordingly.

dropNulls

fun <T> DataColumn<T?>.dropNulls(): DataColumn<T>

Removes null values from this DataColumn, adjusting the type accordingly.

duplicateValuesImpl

internal fun <T> DataColumn<T>.duplicateValuesImpl(n: Int): DataColumn<T>

internal fun <T> DataColumn<T>.duplicateValuesImpl(n: Int, indicesSorted: Iterable<Int>): DataColumn<T>

ensureIsColumnGroup

@PublishedApi

internal fun <C> SingleColumn<DataRow<C>>.ensureIsColumnGroup(): SingleColumn<DataRow<C>>

Checks the validity of this SingleColumn, by adding a check to see it's a ColumnGroup (so, a SingleColumn<*>) and throwing an IllegalArgumentException if it's not.

ensureIsFrameColumn

internal fun <C> SingleColumn<DataFrame<C>>.ensureIsFrameColumn(): SingleColumn<DataFrame<C>>

Checks the validity of this SingleColumn, by adding a check to see it's a FrameColumn (so, a SingleColumn<*>) and throwing an IllegalArgumentException if it's not.

ensureIsValueColumn

internal fun <C> SingleColumn<C>.ensureIsValueColumn(): SingleColumn<C>

Checks the validity of this SingleColumn, by adding a check to see it's a ValueColumn (so, a SingleColumn<*>) and throwing an IllegalArgumentException if it's not.

infix fun <T> DataColumn<T>.eq(value: T): DataColumn<Boolean>

Returns a DataColumn containing the results of comparing each element of this DataColumn with value for equality using the == operator.

infix fun <C> ColumnReference<C>.eq(value: C): ColumnReference<Boolean>

exceptInternal

@JvmName(name = "exceptInternalSingleColumn")

internal fun <C> SingleColumn<DataRow<C>>.exceptInternal(other: ColumnsResolver<*>): SingleColumn<DataRow<C>>

Returns a new SingleColumn> that has the same structure as the receiver, but excludes columns specified in the "other" ColumnsResolver.

explode

@JvmName(name = "explodeList")

fun <T> DataColumn<Collection<T>>.explode(): DataColumn<T>

Splits list-like values in this DataColumn and spreads them vertically — that is, it adds a separate row for each element (one value per row).

@JvmName(name = "explodeFrames")

fun <T> DataColumn<DataFrame<T>>.explode(): ColumnGroup<T>

Explodes a DataColumn of DataFrame values into a single ColumnGroup.

explodeImpl

internal fun AnyCol.explodeImpl(): AnyCol

extractJoinColumns

internal fun <C> ColumnsResolver<C>.extractJoinColumns(): List<ColumnMatch<C>>

extractSchema

internal fun AnyCol.extractSchema(): ColumnSchema

filter

inline fun <T> DataColumn<T>.filter(predicate: Predicate<T>): DataColumn<T>

Returns a new DataColumn containing only the elements that match the given predicate.

first

fun <T> DataColumn<T>.first(): T

Returns the first value in this DataColumn.

fun <T> DataColumn<T>.first(predicate: (T) -> Boolean): T

Returns the first value in this DataColumn that matches the given predicate.

firstOrNull

fun <T> DataColumn<T>.firstOrNull(): T?

Returns the first value in this DataColumn. If the DataColumn is empty, returns null.

fun <T> DataColumn<T>.firstOrNull(predicate: (T) -> Boolean): T?

Returns the first value in this DataColumn that matches the given predicate. Returns null if the DataColumn contains no elements matching the predicate (including the case when the DataColumn is empty).

flattenRecursively

internal fun ColumnsResolver<*>.flattenRecursively(includeGroups: Boolean = true, includeTopLevel: Boolean = true): ColumnsResolver<*>

Flattens a ColumnsResolver recursively.

forEach

inline fun <T> DataColumn<T>.forEach(action: (T) -> Unit)

Calls action for every value of this DataColumn, from the first one to the last one.

forEachIndexed

inline fun <T> DataColumn<T>.forEachIndexed(action: (Int, T) -> Unit)

Calls action for every value of this DataColumn and its position, from the first value to the last one.

frameColumn

fun ColumnReference<DataRow<*>>.frameColumn(): ColumnDelegate<DataFrame<*>>

fun ColumnReference<DataRow<*>>.frameColumn(name: String): ColumnAccessor<DataFrame<*>>

fun <T> ColumnReference<DataRow<*>>.~~frameColumn~~(property: KProperty<List<T>>): ColumnAccessor<DataFrame<T>>

@JvmName(name = "frameColumnDataFrameKProperty")

fun <T> ColumnReference<DataRow<*>>.~~frameColumn~~(property: KProperty<DataFrame<T>>): ColumnAccessor<DataFrame<T>>

fun ColumnReference<DataRow<*>>.frameColumn(path: ColumnPath): ColumnAccessor<DataFrame<*>>

frameColumnsInternal

internal inline fun ColumnsResolver<*>.frameColumnsInternal(crossinline filter: (FrameColumn<*>) -> Boolean): TransformableColumnSet<AnyFrame>

Returns a TransformableColumnSet containing the frame columns that satisfy the given filter.

get

open operator override fun get(index: Int): T

Gets the row at given index.

open operator override fun get(columnName: String): DataColumn<*>

open operator override fun get(row: AnyRow): T

open operator override fun get(firstIndex: Int, vararg otherIndices: Int): BaseColumn<T>

open operator override fun get(indices: Iterable<Int>): DataColumn<T>

Gets the rows at given indices.

open operator override fun get(range: IntRange): DataColumn<T>

Gets the rows at given range of indices.

getAt

internal fun <T> ColumnsResolver<T>.getAt(index: Int): SingleColumn<T>

getHashCode

internal fun AnyCol.getHashCode(): Int

getStatisticCacheOrNull

open override fun getStatisticCacheOrNull(statName: String, arguments: Map<String, Any>): StatisticResult?

getValue

open override fun getValue(row: AnyRow): T

open operator override fun getValue(thisRef: Any?, property: KProperty<*>): ValueColumn<T>

getValueOrNull

open override fun getValueOrNull(row: AnyRow): T?

grouped

internal fun <T> AnyCol.grouped(): ColumnGroup<T>

infix fun <T : Comparable<T>> DataColumn<T>.gt(value: T): DataColumn<Boolean>

Returns a DataColumn containing the results of comparing each element of this DataColumn with value using the > operator.

infix fun <C : Comparable<C>> ColumnReference<C>.gt(value: C): ColumnReference<Boolean>

hasNulls

open override fun hasNulls(): Boolean

indices

fun AnyBaseCol.indices(): IntRange

inferType

fun DataColumn<*>.inferType(): DataColumn<*>

internal

internal fun <T> DataColumn<T>.internal(): DataColumnInternal<T>

internalValueColumn

internal fun <T> ValueColumn<T>.internalValueColumn(): ValueColumnInternal<T>

isColumnGroup

fun DataColumn<*>.isColumnGroup(): Boolean

Returns true if this column is a ColumnGroup, i.e., its kind is ColumnKind.Group.

isComparable

fun DataColumn<*>.~~isComparable~~(): Boolean

Returns true if this column is intra-comparable (mutually comparable), i.e., its values can be compared with each other and thus ordered.

isFrameColumn

fun DataColumn<*>.isFrameColumn(): Boolean

Returns true if this column is a FrameColumn, i.e., its kind is ColumnKind.Frame.

isList

fun DataColumn<*>.isList(): Boolean

Returns true when the class of this column's type is List, i.e., the column holds List<*> (or List<*>?) values.

isMissingColumn

internal fun AnyCol.isMissingColumn(): Boolean

isMixedNumber

fun DataColumn<*>.isMixedNumber(): Boolean

Returns true only when this column's type is exactly Number or Number?.

isNumber

fun DataColumn<*>.isNumber(): Boolean

Returns true when this column's type is a subtype of Number?

isPrimitiveNumber

fun DataColumn<*>.isPrimitiveNumber(): Boolean

Returns true when this column has the (nullable) type of either: Byte, Short, Int, Long, Float, or Double.

isPrimitiveOrMixedNumber

fun DataColumn<*>.isPrimitiveOrMixedNumber(): Boolean

Returns true when this column has the (nullable) type of either: Byte, Short, Int, Long, Float, Double, or Number.

isSubtypeOf

inline fun <reified T> DataColumn<*>.isSubtypeOf(): Boolean

Returns true if the type of this column is a subtype of T.

fun DataColumn<*>.isSubtypeOf(type: KType): Boolean

Returns true if the type of this column is a subtype of the given type.

isSuitableForCorr

internal fun AnyCol.isSuitableForCorr(): Boolean

isType

inline fun <reified T> DataColumn<*>.isType(): Boolean

Returns true only if the type of this column is exactly T.

isValueColumn

fun DataColumn<*>.isValueColumn(): Boolean

Returns true if this column is a ValueColumn, i.e., its kind is ColumnKind.Value.

iterator

open operator override fun iterator(): Iterator<T>

kind

open override fun kind(): ColumnKind

last

fun <T> DataColumn<T>.last(): T

Returns the last value in this DataColumn.

inline fun <T> DataColumn<T>.last(predicate: (T) -> Boolean): T

Returns the last value in this DataColumn that matches the given predicate.

lastOrNull

fun <T> DataColumn<T>.lastOrNull(): T?

Returns the last value in this DataColumn. If the DataColumn is empty, returns null.

inline fun <T> DataColumn<T>.lastOrNull(predicate: (T) -> Boolean): T?

Returns the last value in this DataColumn that matches the given predicate. Returns null if the DataColumn contains no elements matching the predicate (including the case when the DataColumn is empty).

length

fun DataColumn<String?>.~~length~~(): DataColumn<Int>

fun ColumnReference<String?>.~~length~~(): ColumnReference<Int>

lowercase

fun DataColumn<String?>.~~lowercase~~(): DataColumn<String?>

fun ColumnReference<String?>.~~lowercase~~(): ColumnReference<String?>

infix fun <T : Comparable<T>> DataColumn<T>.lt(value: T): DataColumn<Boolean>

Returns a DataColumn containing the results of comparing each element of this DataColumn with value using the < operator.

infix fun <C : Comparable<C>> ColumnReference<C>.lt(value: C): ColumnReference<Boolean>

map

inline fun <T, reified R> DataColumn<T>.map(infer: Infer = Infer.Nulls, transform: (T) -> R): DataColumn<R>

Returns a new DataColumn with the values that transform computes from the values of this column.

internal inline fun <C, reified R> ColumnReference<C>.~~map~~(infer: Infer = Infer.Nulls, noinline transform: (C) -> R): ColumnReference<R>

inline fun <T, R> DataColumn<T>.map(type: KType, infer: Infer = Infer.Nulls, transform: (T) -> R): DataColumn<R>

Returns a new DataColumn of the given type with the values that transform computes from the values of this column.

mapIndexed

inline fun <T, reified R> DataColumn<T>.mapIndexed(infer: Infer = Infer.Nulls, transform: (Int, T) -> R): DataColumn<R>

Returns a new DataColumn with the values that transform computes from the values of this column and their positions.

inline fun <T, R> DataColumn<T>.mapIndexed(type: KType, infer: Infer = Infer.Nulls, transform: (Int, T) -> R): DataColumn<R>

Returns a new DataColumn of the given type with the values that transform computes from the values of this column and their positions.

mapNotNullValues

@PublishedApi

internal fun <T, R> DataColumn<T?>.mapNotNullValues(transform: (T) -> R): DataColumn<R?>

max

fun <T : Comparable<T>> DataColumn<T?>.max(skipNaN: Boolean = skipNaNDefault): T

Returns the maximum of the values in this DataColumn.

maxBy

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.maxBy(skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): T

Returns the first element of this DataColumn for which the given selector returns the maximum value.

maxByOrNull

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.maxByOrNull(skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): T?

Returns the first element of this DataColumn for which the given selector returns the maximum value, or null if there is nothing to compare.

maxOf

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.maxOf(skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): R & Any

Returns the maximum of the values that the given selector returns for each element of this DataColumn.

maxOfOrNull

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.maxOfOrNull(skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): R?

Returns the maximum of the values that the given selector returns for each element of this DataColumn, or null if there is nothing to compare.

maxOrNull

fun <T : Comparable<T>> DataColumn<T?>.maxOrNull(skipNaN: Boolean = skipNaNDefault): T?

Returns the maximum of the values in this DataColumn, or null if there is nothing to compare.

maxWidth

internal fun BaseColumn<*>.maxWidth(): Int

Returns the max number of columns needed to display this column flattened

mean

fun DataColumn<Number?>.mean(skipNaN: Boolean = skipNaNDefault): Double

Returns the mean of the values in this DataColumn, as a Double.

meanOf

inline fun <T, reified R : Number?> DataColumn<T>.meanOf(skipNaN: Boolean = skipNaNDefault, crossinline expression: (T) -> R): Double

Returns the mean of the values that the given expression returns for each element of this DataColumn, as a Double.

median

fun <T : Comparable<T & Any>?> DataColumn<T>.median(): T & Any

Returns the median of the comparable values in this DataColumn.

fun <T : Comparable<T & Any>?, Number?> DataColumn<T>.median(skipNaN: Boolean = skipNaNDefault): Double

Returns the median of the numbers in this DataColumn, as a Double.

medianBy

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.medianBy(skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): T

Returns the element of this DataColumn at the median of the values that the given selector returns for each element.

medianByOrNull

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.medianByOrNull(skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): T?

Returns the element of this DataColumn at the median of the values that the given selector returns for each element, or null if there is nothing to compute the median of.

medianOf

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.medianOf(crossinline expression: (T) -> R): R & Any

Returns the median of the comparable values that the given expression returns for each element of this DataColumn.

inline fun <T, reified R : Comparable<R & Any>?, Number?> DataColumn<T>.medianOf(skipNaN: Boolean = skipNaNDefault, crossinline expression: (T) -> R): Double

Returns the median of the numbers that the given expression returns for each element of this DataColumn, as a Double.

medianOfOrNull

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.medianOfOrNull(crossinline expression: (T) -> R): R?

Returns the median of the comparable values that the given expression returns for each element of this DataColumn, or null if there is nothing to compute the median of.

inline fun <T, reified R : Comparable<R & Any>?, Number?> DataColumn<T>.medianOfOrNull(skipNaN: Boolean = skipNaNDefault, crossinline expression: (T) -> R): Double?

Returns the median of the numbers that the given expression returns for each element of this DataColumn, as a Double, or null if there is nothing to compute the median of.

medianOrNull

fun <T : Comparable<T & Any>?> DataColumn<T>.medianOrNull(): T?

Returns the median of the comparable values in this DataColumn, or null if there is nothing to compute the median of.

fun <T : Comparable<T & Any>?, Number?> DataColumn<T>.medianOrNull(skipNaN: Boolean = skipNaNDefault): Double?

Returns the median of the numbers in this DataColumn, as a Double, or null if there is nothing to compute the median of.

min

fun <T : Comparable<T>> DataColumn<T?>.min(skipNaN: Boolean = skipNaNDefault): T

Returns the minimum of the values in this DataColumn.

minBy

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.minBy(skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): T

Returns the first element of this DataColumn for which the given selector returns the minimum value.

minByOrNull

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.minByOrNull(skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): T?

Returns the first element of this DataColumn for which the given selector returns the minimum value, or null if there is nothing to compare.

minOf

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.minOf(skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): R & Any

Returns the minimum of the values that the given selector returns for each element of this DataColumn.

minOfOrNull

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.minOfOrNull(skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): R?

Returns the minimum of the values that the given selector returns for each element of this DataColumn, or null if there is nothing to compare.

minOrNull

fun <T : Comparable<T>> DataColumn<T?>.minOrNull(skipNaN: Boolean = skipNaNDefault): T?

Returns the minimum of the values in this DataColumn, or null if there is nothing to compare.

minus

operator fun DataColumn<BigDecimal>.minus(value: BigDecimal): DataColumn<BigDecimal>

operator fun DataColumn<BigInteger>.minus(value: BigInteger): DataColumn<BigInteger>

operator fun DataColumn<Double>.minus(value: Double): DataColumn<Double>

@JvmName(name = "minusDouble")

operator fun DataColumn<Double>.minus(value: Int): DataColumn<Double>

@JvmName(name = "minusIntNullable")

operator fun DataColumn<Int?>.minus(value: Int): DataColumn<Int?>

@JvmName(name = "minusInt")

operator fun DataColumn<Int>.minus(value: Double): DataColumn<Double>

operator fun DataColumn<Int>.minus(value: Int): DataColumn<Int>

operator fun DataColumn<Long>.minus(value: Long): DataColumn<Long>

Returns a DataColumn where each element is the result of subtracting value from the corresponding element of this DataColumn.

operator fun ColumnReference<Int>.minus(value: Int): ColumnReference<Int>

Returns a ColumnReference where each element is the result of subtracting value from the corresponding element of this ColumnReference.

name

open override fun name(): String

neq

infix fun <T> DataColumn<T>.neq(value: T): DataColumn<Boolean>

Returns a DataColumn containing the results of comparing each element of this DataColumn with value for inequality using the != operator.

infix fun <C> ColumnReference<C>.~~neq~~(value: C): ColumnReference<Boolean>

none

fun <T> DataColumn<T>.none(predicate: Predicate<T>): Boolean

Returns true if none of the values match the given predicate.

not

@JvmName(name = "notBooleanNullable")

operator fun DataColumn<Boolean?>.not(): DataColumn<Boolean?>

Returns a DataColumn containing the inverse Boolean values of this DataColumn. Each null value in the original DataColumn is preserved.

operator fun DataColumn<Boolean>.not(): DataColumn<Boolean>

Returns a DataColumn containing the inverse Boolean values of this DataColumn.

@JvmName(name = "notBooleanNullable")

operator fun ColumnReference<Boolean?>.not(): ColumnReference<Boolean?>

Returns a ColumnReference containing the inverse Boolean values of this ColumnReference. Each null value in the original ColumnReference is preserved.

operator fun ColumnReference<Boolean>.not(): ColumnReference<Boolean>

Returns a ColumnReference containing the inverse Boolean values of this ColumnReference.

onResolve

internal fun <A> SingleColumn<A>.onResolve(check: (ColumnWithPath<A>?) -> Unit): SingleColumn<A>

Helper function to perform runtime checks on a SingleColumn.

parse

@JvmName(name = "parseChar")

fun DataColumn<Char?>.parse(options: ParserOptions? = null): DataColumn<*>

Tries to parse a column of chars as strings into a column of a different type. Each parser in Parsers is run in order until a valid parser is found, a.k.a. that parser was able to parse all values in the column successfully. If a parser fails to parse any value, the next parser is tried.

fun DataColumn<String?>.parse(options: ParserOptions? = null): DataColumn<*>

Tries to parse a column of strings into a column of a different type. Each parser in Parsers is run in order until a valid parser is found, a.k.a. that parser was able to parse all values in the column successfully. If a parser fails to parse any value, the next parser is tried.

@JvmName(name = "parseAnyFrameNullable")

fun DataColumn<DataFrame<*>?>.parse(options: ParserOptions? = null): DataColumn<DataFrame<*>?>

internal fun <T> DataColumn<String?>.parse(parser: StringParser<T>, options: ParserOptions?): DataColumn<T?>

path

open override fun path(): ColumnPath

percentile

fun <T : Comparable<T & Any>?> DataColumn<T>.percentile(percentile: Double): T & Any

Returns the given percentile of the comparable values in this DataColumn.

fun <T : Comparable<T & Any>?, Number?> DataColumn<T>.percentile(percentile: Double, skipNaN: Boolean = skipNaNDefault): Double

Returns the given percentile of the numbers in this DataColumn, as a Double.

percentileBy

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.percentileBy(percentile: Double, skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): T

Returns the element of this DataColumn at the given percentile of the values that the given selector returns for each element.

percentileByOrNull

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.percentileByOrNull(percentile: Double, skipNaN: Boolean = skipNaNDefault, crossinline selector: (T) -> R): T?

Returns the element of this DataColumn at the given percentile of the values that the given selector returns for each element, or null if there is nothing to compute the percentile of.

percentileOf

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.percentileOf(percentile: Double, crossinline expression: (T) -> R): R & Any

Returns the given percentile of the comparable values that the given expression returns for each element of this DataColumn.

inline fun <T, reified R : Comparable<R & Any>?, Number?> DataColumn<T>.percentileOf(percentile: Double, skipNaN: Boolean = skipNaNDefault, crossinline expression: (T) -> R): Double

Returns the given percentile of the numbers that the given expression returns for each element of this DataColumn, as a Double.

percentileOfOrNull

inline fun <T, reified R : Comparable<R & Any>?> DataColumn<T>.percentileOfOrNull(percentile: Double, crossinline expression: (T) -> R): R?

Returns the given percentile of the comparable values that the given expression returns for each element of this DataColumn, or null if there is nothing to compute the percentile of.

inline fun <T, reified R : Comparable<R & Any>?, Number?> DataColumn<T>.percentileOfOrNull(percentile: Double, skipNaN: Boolean = skipNaNDefault, crossinline expression: (T) -> R): Double?

Returns the given percentile of the numbers that the given expression returns for each element of this DataColumn, as a Double, or null if there is nothing to compute the percentile of.

percentileOrNull

fun <T : Comparable<T & Any>?> DataColumn<T>.percentileOrNull(percentile: Double): T?

Returns the given percentile of the comparable values in this DataColumn, or null if there is nothing to compute the percentile of.

fun <T : Comparable<T & Any>?, Number?> DataColumn<T>.percentileOrNull(percentile: Double, skipNaN: Boolean = skipNaNDefault): Double?

Returns the given percentile of the numbers in this DataColumn, as a Double, or null if there is nothing to compute the percentile of.

plus

operator fun DataColumn<*>.plus(str: String): DataColumn<String>

Returns a DataColumn of String values obtained by converting each element of this AnyCol to a String and concatenating it with str.

operator fun DataColumn<BigDecimal>.plus(value: BigDecimal): DataColumn<BigDecimal>

operator fun DataColumn<BigInteger>.plus(value: BigInteger): DataColumn<BigInteger>

operator fun DataColumn<Double>.plus(value: Double): DataColumn<Double>

@JvmName(name = "plusDouble")

operator fun DataColumn<Double>.plus(value: Int): DataColumn<Double>

@JvmName(name = "plusIntNullable")

operator fun DataColumn<Int?>.plus(value: Int): DataColumn<Int?>

@JvmName(name = "plusInt")

operator fun DataColumn<Int>.plus(value: Double): DataColumn<Double>

operator fun DataColumn<Int>.plus(value: Int): DataColumn<Int>

operator fun DataColumn<Long>.plus(value: Long): DataColumn<Long>

Returns a DataColumn where each element is the result of adding value to the corresponding element of this DataColumn.

operator fun ColumnReference<Any?>.plus(str: String): ColumnReference<String>

Returns a ColumnReference of String values obtained by converting each element of this ColumnReference to a String and concatenating it with str.

operator fun ColumnReference<Int>.plus(value: Int): ColumnReference<Int>

Returns a ColumnReference where each element is the result of adding value to the corresponding element of this ColumnReference.

fun <T> DataColumn<T>.print()

putStatisticCache

open override fun putStatisticCache(statName: String, arguments: Map<String, Any>, value: StatisticResult)

rename

open override fun rename(newName: String): ValueColumn<T>

renamedColumn

internal fun <C> SingleColumn<C>.renamedColumn(newName: String): SingleColumn<C>

renamedReference

internal fun <C> ColumnReference<C>.renamedReference(newName: String): ColumnReference<C>

renderShort

internal fun AnyCol.renderShort(): String

resolve

open override fun resolve(context: ColumnResolutionContext): List<ColumnWithPath<T>>

Resolves this ColumnsResolver as a List<ColumnWithPath<C>>. In many cases this function transforms a parent ColumnsResolver to reach the current ColumnsResolver result.

resolve

internal fun <C> ColumnsResolver<C>.resolve(df: DataFrame<*>, unresolvedColumnsPolicy: UnresolvedColumnsPolicy = UnresolvedColumnsPolicy.Fail): List<ColumnWithPath<C>>

resolveFor

internal fun <C> ColumnReference<C>.resolveFor(df: AnyFrame): ColumnWithPath<C>?

resolveSingle

open override fun resolveSingle(context: ColumnResolutionContext): ColumnWithPath<T>?

resolveSingle

internal fun <C> SingleColumn<C>.resolveSingle(df: DataFrame<*>, unresolvedColumnsPolicy: UnresolvedColumnsPolicy = UnresolvedColumnsPolicy.Fail): ColumnWithPath<C>?

reverse

fun <T> DataColumn<T>.reverse(): DataColumn<T>

Returns a new DataColumn with the same values in reversed order, so the last value becomes the first one.

fun <T> ValueColumn<T>.reverse(): ValueColumn<T>

Returns a new ValueColumn with the same values in reversed order, so the last value becomes the first one.

scale

internal fun <T : Number> DataColumn<T?>.scale(): Int

selectInternal

internal fun <C, R> SingleColumn<DataRow<C>>.selectInternal(selector: ColumnsSelector<C, R>): ColumnSet<R>

setNullable

fun DataColumn<*>.setNullable(nullable: Boolean): DataColumn<*>

shortPath

internal fun ColumnReference<*>.shortPath(): ColumnPath

shuffle

fun <T> DataColumn<T>.shuffle(): DataColumn<T>

Returns a new DataColumn with values in random order using the default randomness.

fun <T> DataColumn<T>.shuffle(random: Random): DataColumn<T>

Returns a new DataColumn with the same values in random order using the provided random source.

simplifyInternal

internal fun ColumnsResolver<*>.simplifyInternal(): ColumnSet<*>

Simplifies structure by removing columns that are already present in column groups in this.

single

fun <C> DataColumn<C>.single(): C

Returns the single value in this DataColumn.

singleImpl

internal fun <T> ColumnsResolver<T>.singleImpl(): SingleColumn<T>

Converts this ColumnsResolver to a SingleColumn. resolveSingle will return the single column of this if there is only one, else it will throw an exception: In case of an empty ColumnsResolver, a NoSuchElementException will be thrown. In case of more than one column, an IllegalArgumentException will be thrown. If the result is used as a ColumnSet, null will be converted to an empty list.

singleInternal

internal fun <C> ColumnsResolver<C>.singleInternal(condition: ColumnFilter<C> = { true }): TransformableSingleColumn<C>

singleOrNullImpl

internal fun <T> ColumnsResolver<T>.singleOrNullImpl(): SingleColumn<T>

Converts this ColumnsResolver to a SingleColumn. resolveSingle will return the single column of this if there is only one, else it will return null. If the result used as a ColumnSet, null will be converted to an empty list.

size

open override fun size(): Int

sort

fun <T : Comparable<T>> DataColumn<T>.sort(): ValueColumn<T>

Sorts the values in this column in ascending order.

sortDesc

fun <T : Comparable<T>> DataColumn<T>.sortDesc(): ValueColumn<T>

Sorts the values in this column in descending order.

splitInto

fun DataColumn<Iterable<*>>.splitInto(vararg names: String): DataFrame<*>

std

fun DataColumn<Number?>.std(skipNaN: Boolean = skipNaNDefault, ddof: Int = ddofDefault): Double

Returns the standard deviation of the values in this DataColumn, as a Double.

stdOf

inline fun <T, reified R : Number?> DataColumn<T>.stdOf(skipNaN: Boolean = skipNaNDefault, ddof: Int = ddofDefault, noinline expression: (T) -> R): Double

Returns the standard deviation of the values that the given expression returns for each element of this DataColumn, as a Double.

sum

@JvmName(name = "sumByte")

fun DataColumn<Byte?>.sum(): Int

Returns the sum of the Byte values in this DataColumn, as an Int.

@JvmName(name = "sumShort")

fun DataColumn<Short?>.sum(): Int

Returns the sum of the Short values in this DataColumn, as an Int.

@JvmName(name = "sumNumber")

fun <T : Number?> DataColumn<T>.sum(skipNaN: Boolean = skipNaNDefault): T & Any

Returns the sum of the values in this DataColumn.

sumOf

@JvmName(name = "sumOfByte")

inline fun <C, reified V : Byte?> DataColumn<C>.sumOf(crossinline expression: (C) -> V): Int

Returns the sum of the Byte values that the given expression returns for each element of this DataColumn, as an Int.

@JvmName(name = "sumOfShort")

inline fun <C, reified V : Short?> DataColumn<C>.sumOf(crossinline expression: (C) -> V): Int

Returns the sum of the Short values that the given expression returns for each element of this DataColumn, as an Int.

@JvmName(name = "sumOfNumber")

inline fun <C, reified V : Number?> DataColumn<C>.sumOf(skipNaN: Boolean = skipNaNDefault, crossinline expression: (C) -> V): V & Any

Returns the sum of the values that the given expression returns for each element of this DataColumn.

take

fun <T> DataColumn<T>.take(n: Int): DataColumn<T>

Returns a DataColumn containing the first n values of this DataColumn.

takeLast

fun <T> DataColumn<T>.takeLast(n: Int = 1): DataColumn<T>

Returns a DataColumn containing the last n values of this DataColumn.

times

operator fun DataColumn<BigDecimal>.times(value: BigDecimal): DataColumn<BigDecimal>

operator fun DataColumn<BigInteger>.times(value: BigInteger): DataColumn<BigInteger>

operator fun DataColumn<Double>.times(value: Double): DataColumn<Double>

@JvmName(name = "timesDouble")

operator fun DataColumn<Double>.times(value: Int): DataColumn<Double>

@JvmName(name = "timesIntNullable")

operator fun DataColumn<Int?>.times(value: Int): DataColumn<Int?>

@JvmName(name = "timesInt")

operator fun DataColumn<Int>.times(value: Double): DataColumn<Double>

operator fun DataColumn<Int>.times(value: Int): DataColumn<Int>

operator fun DataColumn<Long>.times(value: Long): DataColumn<Long>

Returns a DataColumn containing the results of multiplying each element of this DataColumn by value.

operator fun ColumnReference<Int>.times(value: Int): ColumnReference<Int>

Returns a ColumnReference containing the results of multiplying each element of this ColumnReference by value.

toByteArray

fun DataColumn<Number>.toByteArray(): ByteArray

toColumnAccessor

fun <T> ColumnReference<T>.toColumnAccessor(): ColumnAccessor<T>

toDataFrame

fun BaseColumn<*>.toDataFrame(): DataFrame<*>

toDataFrames

fun <T> DataColumn<List<List<T>>>.toDataFrames(containsColumns: Boolean = false): DataColumn<DataFrame<*>>

Converts a list of lists values in this DataColumn to DataFrame.

toDoubleArray

fun DataColumn<Number>.toDoubleArray(): DoubleArray

toFloatArray

fun DataColumn<Number>.toFloatArray(): FloatArray

toIntArray

fun DataColumn<Number>.toIntArray(): IntArray

toList

open override fun toList(): List<T>

toLongArray

fun DataColumn<Number>.toLongArray(): LongArray

toSet

open override fun toSet(): Set<T>

toShortArray

fun DataColumn<Number>.toShortArray(): ShortArray

toTypedArray

inline fun <reified T> DataColumn<T>.toTypedArray(): Array<T>

transform

@PublishedApi

internal inline fun <A, B> ColumnsResolver<A>.transform(crossinline converter: (List<ColumnWithPath<A>>) -> List<ColumnWithPath>): TransformableColumnSet

Applies a transformation on this by converting its List<ColumnWithPath<A>] to List<ColumnWithPath<B>] using converter.

transformSingle

internal fun <A, B> SingleColumn<A>.transformSingle(converter: (ColumnWithPath<A>) -> List<ColumnWithPath>): ColumnSet

Applies a transformation on this SingleColumn by converting its single ColumnWithPath<A> to List<ColumnWithPath<B>] using converter. Since converter allows you to return multiple columns, the result is turned into a ColumnSet<B>.

transformSingleWithContext

internal fun <A, B> SingleColumn<A>.transformSingleWithContext(converter: ColumnResolutionContext.(ColumnWithPath<A>) -> List<ColumnWithPath>): ColumnSet

Applies a transformation on this SingleColumn by converting its single ColumnWithPath<A> to List<ColumnWithPath<B>] using converter but also providing the ColumnResolutionContext to the converter.

transformWithContext

internal fun <A, B> ColumnsResolver<A>.transformWithContext(converter: ColumnResolutionContext.(List<ColumnWithPath<A>>) -> List<ColumnWithPath>): TransformableColumnSet

Applies a transformation on this by converting its List<ColumnWithPath<A>] to List<ColumnWithPath<B>] using converter, but also providing the ColumnResolutionContext to the converter.

tryParse

@JvmName(name = "tryParseChar")

fun DataColumn<Char?>.tryParse(options: ParserOptions? = null): DataColumn<*>

Tries to parse a column of chars into a column of a different type. Each parser in Parsers is run in order until a valid parser is found, a.k.a. that parser was able to parse all values in the column successfully. If a parser fails to parse any value, the next parser is tried. If all the others fail, the final parser returns strings.

fun DataColumn<String?>.tryParse(options: ParserOptions? = null): DataColumn<*>

tryParseImpl

internal fun DataColumn<String?>.tryParseImpl(options: ParserOptions?): DataColumn<*>

type

open override fun type(): KType

unaryMinus

@JvmName(name = "unaryMinusBigDecimal")

operator fun DataColumn<BigDecimal>.unaryMinus(): DataColumn<BigDecimal>

@JvmName(name = "unaryMinusBigInteger")

operator fun DataColumn<BigInteger>.unaryMinus(): DataColumn<BigInteger>

@JvmName(name = "unaryMinusDouble")

operator fun DataColumn<Double>.unaryMinus(): DataColumn<Double>

@JvmName(name = "unaryMinusIntNullable")

operator fun DataColumn<Int?>.unaryMinus(): DataColumn<Int?>

operator fun DataColumn<Int>.unaryMinus(): DataColumn<Int>

@JvmName(name = "unaryMinusLong")

operator fun DataColumn<Long>.unaryMinus(): DataColumn<Long>

Returns a DataColumn containing negatives of the corresponding elements of this DataColumn.

operator fun ColumnReference<Int>.unaryMinus(): ColumnReference<Int>

Returns a ColumnReference containing negatives of the corresponding elements of this ColumnReference.

unbox

internal fun AnyBaseCol.unbox(): AnyCol

unfold

inline fun <reified T> DataColumn<T>.unfold(vararg roots: KCallable<*>, maxDepth: Int = 0): DataColumn<*>

Returns a ColumnGroup made from the objects of this column, with a column for every public property of these objects, or this column itself when it cannot be unfolded.

unfoldImpl

@PublishedApi

internal fun <T> DataColumn<T>.unfoldImpl(type: KType, body: CreateDataFrameDsl<T>.() -> Unit): AnyCol

updateImpl

internal fun <T, C> DataColumn<C>.updateImpl(df: DataFrame<T>, filter: RowValueFilter<T, C>?, expression: (AddDataRow<T>, DataColumn<C>, C) -> C?): DataColumn<C>

updateWith

internal fun <T> DataColumn<T>.updateWith(values: List<T>): DataColumn<T>

Replaces all values in the column asserting that new values are compatible with the current column kind.

uppercase

fun DataColumn<String?>.~~uppercase~~(): DataColumn<String?>

fun ColumnReference<String?>.~~uppercase~~(): ColumnReference<String?>

valueColumn

fun ColumnReference<DataRow<*>>.valueColumn(): ColumnDelegate<Any?>

fun ColumnReference<DataRow<*>>.valueColumn(name: String): ColumnAccessor<Any?>

fun <T> ColumnReference<DataRow<*>>.~~valueColumn~~(property: KProperty<T>): ColumnAccessor<T>

fun ColumnReference<DataRow<*>>.valueColumn(path: ColumnPath): ColumnAccessor<Any?>

valueColumnsInternal

internal inline fun ColumnsResolver<*>.valueColumnsInternal(crossinline filter: (ValueColumn<*>) -> Boolean): TransformableColumnSet<*>

Returns a TransformableColumnSet containing the value columns that satisfy the given filter.

valueCounts

fun <T> DataColumn<T>.valueCounts(sort: Boolean = true, ascending: Boolean = false, dropNA: Boolean = true, resultColumn: String = defaultCountColumnName): DataFrame<ValueCount>

Returns a DataFrame containing counts of unique values in this DataColumn.

values

open override fun values(): Iterable<T>

valuesAreComparable

fun DataColumn<*>.valuesAreComparable(): Boolean

Returns true if this column is intra-comparable (mutually comparable), i.e., its values can be compared with each other and thus ordered.

withValues

inline fun <reified T> ColumnReference<T>.~~withValues~~(values: Iterable<T>): ValueColumn<T>

inline fun <reified T> ColumnReference<T>.~~withValues~~(vararg values: T): ValueColumn<T>