core/org.jetbrains.kotlinx.dataframe/DataFrame/Companion

Companion

object Companion

Properties

Empty

val Empty: AnyFrame

parser

val DataFrame.Companion.parser: GlobalParserOptions

Global counterpart of ParserOptions.

Functions

empty

fun empty(nrow: Int = 0): AnyFrame

fun empty(schema: DataFrameSchema): AnyFrame

Creates a DataFrame with empty columns (rows = 0). Can be used as a "null object" in aggregation operations, operations that work on columns (select, reorder, ...)

emptyOf

inline fun <reified T> emptyOf(): DataFrame<T>

Creates a DataFrame with empty columns (rows = 0). Can be used as a "null object" in aggregation operations, operations that work on columns (select, reorder, ...)

read

fun DataFrame.Companion.~~read~~(file: File, header: List<String> = emptyList()): AnyFrame

fun DataFrame.Companion.~~read~~(url: URL, header: List<String> = emptyList()): AnyFrame

fun DataFrame.Companion.~~read~~(path: Path, header: List<String> = emptyList()): AnyFrame

fun DataFrame.Companion.~~read~~(path: String, header: List<String> = emptyList()): AnyFrame

internal fun DataFrame.Companion.read(stream: InputStream, format: SupportedDataFrameFormat? = null, header: List<String> = emptyList(), formats: List<SupportedDataFrameFormat> = supportedFormats.filterIsInstance<SupportedDataFrameFormat>()): ReadAnyFrame

internal fun DataFrame.Companion.read(path: Path, format: SupportedDataFrameFormat? = null, header: List<String> = emptyList(), formats: List<SupportedDataFrameFormat> = supportedFormats.filterIsInstance<SupportedDataFrameFormat>()): ReadAnyFrame

fun DataFrame.Companion.~~read~~(fileOrUrl: String, delimiter: Char, header: List<String> = listOf(), colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, duplicate: Boolean = true, charset: Charset = Charsets.UTF_8): DataFrame<*>

readCSV

fun DataFrame.Companion.~~readCSV~~(file: File, delimiter: Char = ',', header: List<String> = listOf(), colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, duplicate: Boolean = true, charset: Charset = Charsets.UTF_8, parserOptions: ParserOptions? = null): DataFrame<*>

fun DataFrame.Companion.~~readCSV~~(url: URL, delimiter: Char = ',', header: List<String> = listOf(), colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, duplicate: Boolean = true, charset: Charset = Charsets.UTF_8, parserOptions: ParserOptions? = null): DataFrame<*>

fun DataFrame.Companion.~~readCSV~~(fileOrUrl: String, delimiter: Char = ',', header: List<String> = listOf(), colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, duplicate: Boolean = true, charset: Charset = Charsets.UTF_8, parserOptions: ParserOptions? = null): DataFrame<*>

fun DataFrame.Companion.~~readCSV~~(stream: InputStream, delimiter: Char = ',', header: List<String> = listOf(), isCompressed: Boolean = false, colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, duplicate: Boolean = true, charset: Charset = Charsets.UTF_8, parserOptions: ParserOptions? = null): DataFrame<*>

readDelim

fun DataFrame.Companion.~~readDelim~~(reader: Reader, format: CSVFormat = CSVFormat.DEFAULT.builder() .setHeader() .build(), colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, parserOptions: ParserOptions? = null): AnyFrame

fun DataFrame.Companion.~~readDelim~~(inStream: InputStream, delimiter: Char = ',', header: List<String> = listOf(), isCompressed: Boolean = false, csvType: CSVType, colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, duplicate: Boolean = true, charset: Charset = defaultCharset, parserOptions: ParserOptions? = null): AnyFrame

readDelimImpl

internal fun DataFrame.Companion.readDelimImpl(reader: Reader, format: CSVFormat, colTypes: Map<String, ColType>, skipLines: Int, readLines: Int?, parserOptions: ParserOptions?): AnyFrame

readTSV

fun DataFrame.Companion.~~readTSV~~(file: File, header: List<String> = listOf(), colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, duplicate: Boolean = true, charset: Charset = Charsets.UTF_8): DataFrame<*>

fun DataFrame.Companion.~~readTSV~~(url: URL, header: List<String> = listOf(), colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, duplicate: Boolean = true, charset: Charset = Charsets.UTF_8, parserOptions: ParserOptions? = null): DataFrame<*>

fun DataFrame.Companion.~~readTSV~~(fileOrUrl: String, header: List<String> = listOf(), colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, duplicate: Boolean = true, charset: Charset = Charsets.UTF_8, parserOptions: ParserOptions? = null): DataFrame<*>

fun DataFrame.Companion.~~readTSV~~(stream: InputStream, header: List<String> = listOf(), isCompressed: Boolean = false, colTypes: Map<String, ColType> = mapOf(), skipLines: Int = 0, readLines: Int? = null, duplicate: Boolean = true, charset: Charset = Charsets.UTF_8, parserOptions: ParserOptions? = null): DataFrame<*>