get

abstract operator override fun get(indices: Iterable<Int>): ColumnGroup<T>

abstract operator override fun get(firstIndex: Int, vararg otherIndices: Int): ColumnGroup<T>

Gets the rows at given indices.

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

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

abstract operator override fun get(range: IntRange): ColumnGroup<T>

Gets the rows at given range of indices.

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