get

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

Returns a list of columns selected by columns, a ColumnsSelectionDsl.

NOTE: This doesn't work in ColumnsSelectionDsl, use ColumnsSelectionDsl.cols to select columns by predicate.

abstract operator fun get(index: Int): DataRow<T>

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

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

open operator fun get(first: IntRange, vararg ranges: IntRange): DataFrame<T>

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