core/org.jetbrains.kotlinx.dataframe/ColumnsContainer

ColumnsContainer

interface ColumnsContainer<out T> : ColumnsScope<T>

Provides access to columns.

Base interface for DataFrame and ColumnSelectionDsl

Type Parameters

Schema marker. Used to resolve generated extension properties for typed column access.

Inheritors

ColumnSelectionDsl

AddDsl

DataFrame

Properties

count

@get:JvmName(name = "NullableColumnDescription_count")

val ColumnsScope<ColumnDescription?>.count: DataColumn<Int?>

@get:JvmName(name = "ColumnDescription_count")

val ColumnsScope<ColumnDescription>.count: DataColumn<Int>

@get:JvmName(name = "NullableValueCount_count")

val ColumnsScope<ValueCount?>.count: DataColumn<Int?>

@get:JvmName(name = "ValueCount_count")

val ColumnsScope<ValueCount>.count: DataColumn<Int>

freq

@get:JvmName(name = "NullableColumnDescription_freq")

val ColumnsScope<ColumnDescription?>.freq: DataColumn<Int?>

@get:JvmName(name = "ColumnDescription_freq")

val ColumnsScope<ColumnDescription>.freq: DataColumn<Int>

key

@get:JvmName(name = "NullableKeyValueProperty_key")

val ColumnsScope<KeyValueProperty<*>?>.~~key~~: DataColumn<String?>

@get:JvmName(name = "KeyValueProperty_key")

val ColumnsScope<KeyValueProperty<*>>.~~key~~: DataColumn<String>

max

@get:JvmName(name = "NullableColumnDescription_max")

val ColumnsScope<ColumnDescription?>.max: DataColumn<Any?>

@get:JvmName(name = "ColumnDescription_max")

val ColumnsScope<ColumnDescription>.max: DataColumn<Any>

mean

@get:JvmName(name = "NullableColumnDescription_mean")

val ColumnsScope<ColumnDescription?>.mean: DataColumn<Double?>

@get:JvmName(name = "ColumnDescription_mean")

val ColumnsScope<ColumnDescription>.mean: DataColumn<Double>

median

@get:JvmName(name = "NullableColumnDescription_median")

val ColumnsScope<ColumnDescription?>.median: DataColumn<Any?>

@get:JvmName(name = "ColumnDescription_median")

val ColumnsScope<ColumnDescription>.median: DataColumn<Any>

min

@get:JvmName(name = "NullableColumnDescription_min")

val ColumnsScope<ColumnDescription?>.min: DataColumn<Any?>

@get:JvmName(name = "ColumnDescription_min")

val ColumnsScope<ColumnDescription>.min: DataColumn<Any>

name

@get:JvmName(name = "NameValuePairAny_name")

val ColumnsContainer<NameValuePair<*>>.name: DataColumn<String>

@get:JvmName(name = "NullableColumnDescription_name")

val ColumnsScope<ColumnDescription?>.name: DataColumn<String?>

@get:JvmName(name = "ColumnDescription_name")

val ColumnsScope<ColumnDescription>.name: DataColumn<String>

@get:JvmName(name = "NullableNameValuePair_name")

val <V> ColumnsScope<NameValuePair<V>?>.name: DataColumn<String?>

@get:JvmName(name = "NameValuePair_name")

val <V> ColumnsScope<NameValuePair<V>>.name: DataColumn<String>

@get:JvmName(name = "NullableNameValueProperty_name")

val <T> ColumnsScope<NameValueProperty<T>?>.name: DataColumn<String?>

@get:JvmName(name = "NameValueProperty_name")

val <T> ColumnsScope<NameValueProperty<T>>.name: DataColumn<String>

@get:JvmName(name = "NullableKeyValueProperty_name")

val ColumnsScope<KeyValueProperty<*>?>.name: DataColumn<String?>

@get:JvmName(name = "KeyValueProperty_name")

val ColumnsScope<KeyValueProperty<*>>.name: DataColumn<String>

Accesses the 'key' column of this KeyValueProperty ColumnsContainer.

ncol

internal val ColumnsContainer<*>.ncol: Int

nulls

@get:JvmName(name = "NullableColumnDescription_nulls")

val ColumnsScope<ColumnDescription?>.nulls: DataColumn<Int?>

@get:JvmName(name = "ColumnDescription_nulls")

val ColumnsScope<ColumnDescription>.nulls: DataColumn<Int>

p25

@get:JvmName(name = "NullableColumnDescription_p25")

val ColumnsScope<ColumnDescription?>.p25: DataColumn<Any?>

@get:JvmName(name = "ColumnDescription_p25")

val ColumnsScope<ColumnDescription>.p25: DataColumn<Any>

p75

@get:JvmName(name = "NullableColumnDescription_p75")

val ColumnsScope<ColumnDescription?>.p75: DataColumn<Any?>

@get:JvmName(name = "ColumnDescription_p75")

val ColumnsScope<ColumnDescription>.p75: DataColumn<Any>

path

@get:JvmName(name = "NullableColumnDescription_path")

val ColumnsScope<ColumnDescription?>.path: DataColumn<ColumnPath?>

@get:JvmName(name = "ColumnDescription_path")

val ColumnsScope<ColumnDescription>.path: DataColumn<ColumnPath>

std

@get:JvmName(name = "NullableColumnDescription_std")

val ColumnsScope<ColumnDescription?>.std: DataColumn<Double?>

@get:JvmName(name = "ColumnDescription_std")

val ColumnsScope<ColumnDescription>.std: DataColumn<Double>

top

@get:JvmName(name = "NullableColumnDescription_top")

val ColumnsScope<ColumnDescription?>.top: DataColumn<Any?>

@get:JvmName(name = "ColumnDescription_top")

val ColumnsScope<ColumnDescription>.top: DataColumn<Any>

type

@get:JvmName(name = "NullableColumnDescription_type")

val ColumnsScope<ColumnDescription?>.type: DataColumn<String?>

@get:JvmName(name = "ColumnDescription_type")

val ColumnsScope<ColumnDescription>.type: DataColumn<String>

unique

@get:JvmName(name = "NullableColumnDescription_unique")

val ColumnsScope<ColumnDescription?>.unique: DataColumn<Int?>

@get:JvmName(name = "ColumnDescription_unique")

val ColumnsScope<ColumnDescription>.unique: DataColumn<Int>

value

@get:JvmName(name = "NameValuePairAny_value")

val ColumnsContainer<NameValuePair<*>>.value: DataColumn<*>

@get:JvmName(name = "NullableKeyValueProperty_value")

val <T> ColumnsScope<KeyValueProperty<T>?>.value: DataColumn<T?>

@get:JvmName(name = "KeyValueProperty_value")

val <T> ColumnsScope<KeyValueProperty<T>>.value: DataColumn<T>

@get:JvmName(name = "NullableNameValuePair_value")

val <V> ColumnsScope<NameValuePair<V>?>.value: DataColumn<V?>

@get:JvmName(name = "NameValuePair_value")

val <V> ColumnsScope<NameValuePair<V>>.value: DataColumn<V>

@get:JvmName(name = "NullableNameValueProperty_value")

val <T> ColumnsScope<NameValueProperty<T>?>.value: DataColumn<T?>

@get:JvmName(name = "NameValueProperty_value")

val <T> ColumnsScope<NameValueProperty<T>>.value: DataColumn<T>

@get:JvmName(name = "NullableValueProperty_value")

val <T> ColumnsScope<ValueProperty<T>?>.value: DataColumn<T?>

@get:JvmName(name = "ValueProperty_value")

val <T> ColumnsScope<ValueProperty<T>>.value: DataColumn<T>

Functions

columns

abstract fun columns(): List<DataColumn<*>>

columnsCount

abstract fun columnsCount(): Int

contains

operator fun ColumnsContainer<*>.~~contains~~(column: KProperty<*>): Boolean

operator fun ColumnsContainer<*>.~~contains~~(column: ColumnReference<*>): Boolean

containsColumn

abstract fun containsColumn(name: String): Boolean

abstract fun containsColumn(path: ColumnPath): Boolean

containsColumn

fun ColumnsContainer<*>.~~containsColumn~~(column: KProperty<*>): Boolean

fun <C> ColumnsContainer<*>.~~containsColumn~~(column: ColumnReference<C>): Boolean

get

abstract fun <C> get(columns: ColumnsSelector<T, C>): List<DataColumn<C>>

open fun <C> get(column: ColumnSelector<T, C>): DataColumn<C>

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

open operator fun <R> ~~get~~(column: KProperty<R>): DataColumn<R>

open operator fun <R> ~~get~~(column: KProperty<DataFrame<R>>): FrameColumn<R>

open operator fun <R> ~~get~~(column: KProperty<DataRow<R>>): ColumnGroup<R>

open operator fun <R> ~~get~~(column: DataColumn<R>): DataColumn<R>

open operator fun <R> ~~get~~(column: DataColumn<DataFrame<R>>): FrameColumn<R>

open operator fun <R> ~~get~~(column: DataColumn<DataRow<R>>): ColumnGroup<R>

open operator fun get(columnPath: ColumnPath): DataColumn<*>

open operator fun <R> ~~get~~(column: ColumnReference<R>): DataColumn<R>

open operator fun <R> ~~get~~(column: ColumnReference<DataFrame<R>>): FrameColumn<R>

open operator fun <R> ~~get~~(column: ColumnReference<DataRow<R>>): ColumnGroup<R>

getColumn

fun <T, C> ColumnsContainer<T>.getColumn(selector: ColumnSelector<T, C>): DataColumn<C>

fun <T> ColumnsContainer<T>.getColumn(index: Int): DataColumn<*>

fun <T> ColumnsContainer<T>.getColumn(name: String): DataColumn<*>

fun <T> ColumnsContainer<T>.getColumn(path: ColumnPath): DataColumn<*>

fun <T, R> ColumnsContainer<T>.~~getColumn~~(column: ColumnReference<R>): DataColumn<R>

fun <T, R> ColumnsContainer<T>.~~getColumn~~(column: ColumnReference<DataFrame<R>>): FrameColumn<R>

fun <T, R> ColumnsContainer<T>.~~getColumn~~(column: ColumnReference<DataRow<R>>): ColumnGroup<R>

internal fun <C> ColumnsContainer<*>.getColumn(name: String, policy: UnresolvedColumnsPolicy): DataColumn<C>?

internal fun <C> ColumnsContainer<*>.getColumn(path: ColumnPath, policy: UnresolvedColumnsPolicy): DataColumn<C>?

getColumnGroup

fun <T, C> ColumnsContainer<T>.getColumnGroup(column: ColumnSelector<T, DataRow<C>>): ColumnGroup<C>

fun <T> ColumnsContainer<T>.getColumnGroup(index: Int): ColumnGroup<*>

fun <T> ColumnsContainer<T>.getColumnGroup(name: String): ColumnGroup<*>

fun <T> ColumnsContainer<T>.~~getColumnGroup~~(column: KProperty<*>): ColumnGroup<*>

fun <T> ColumnsContainer<T>.getColumnGroup(columnPath: ColumnPath): ColumnGroup<*>

fun <T, C> ColumnsContainer<T>.~~getColumnGroup~~(column: ColumnReference<DataRow<C>>): ColumnGroup<C>

getColumnGroupOrNull

fun <T> ColumnsContainer<T>.getColumnGroupOrNull(name: String): ColumnGroup<*>?

fun <T> ColumnsContainer<T>.~~getColumnGroupOrNull~~(column: KProperty<*>): ColumnGroup<*>?

getColumnIndex

abstract fun getColumnIndex(name: String): Int

getColumnOrNull

abstract fun <R> getColumnOrNull(column: ColumnSelector<T, R>): DataColumn<R>?

abstract fun getColumnOrNull(index: Int): DataColumn<*>?

abstract fun getColumnOrNull(name: String): DataColumn<*>?

abstract fun <R> ~~getColumnOrNull~~(column: KProperty<R>): DataColumn<R>?

abstract fun getColumnOrNull(path: ColumnPath): DataColumn<*>?

abstract fun <R> ~~getColumnOrNull~~(column: ColumnReference<R>): DataColumn<R>?

getFrameColumn

fun <T> ColumnsContainer<T>.getFrameColumn(columnName: String): FrameColumn<*>

fun <T> ColumnsContainer<T>.getFrameColumn(columnPath: ColumnPath): FrameColumn<*>

mapToColumn

inline fun <T, reified R> ColumnsContainer<T>.~~mapToColumn~~(name: String, infer: Infer = Infer.Nulls, noinline body: AddExpression<T, R>): DataColumn<R>

Returns a new DataColumn with the given name and the values that body computes from the rows of this ColumnsContainer.

inline fun <T, reified R> ColumnsContainer<T>.~~mapToColumn~~(column: KProperty<R>, infer: Infer = Infer.Nulls, noinline body: AddExpression<T, R>): DataColumn<R>

inline fun <T, reified R> ColumnsContainer<T>.~~mapToColumn~~(column: ColumnReference<R>, infer: Infer = Infer.Nulls, noinline body: AddExpression<T, R>): DataColumn<R>

@PublishedApi

internal fun <T, R> ColumnsContainer<T>.mapToColumn(name: String, type: KType, infer: Infer = Infer.Nulls, body: AddExpression<T, R>): DataColumn<R>

fun <T, R> ColumnsContainer<T>.~~mapToColumn~~(column: KProperty<R>, type: KType, infer: Infer = Infer.Nulls, body: AddExpression<T, R>): DataColumn<R>

fun <T, R> ColumnsContainer<T>.~~mapToColumn~~(column: ColumnReference<R>, type: KType, infer: Infer = Infer.Nulls, body: AddExpression<T, R>): DataColumn<R>

newColumn

@PublishedApi

internal fun <T, R> ColumnsContainer<T>.newColumn(type: KType, name: String = "", infer: Infer = Infer.Nulls, expression: AddExpression<T, R>): DataColumn<R>

newColumnWithActualType

@PublishedApi

internal fun <T, R> ColumnsContainer<T>.newColumnWithActualType(name: String, expression: AddExpression<T, R>): DataColumn<R>