core/org.jetbrains.kotlinx.dataframe.impl/DataFrameReceiver/getColumnOrNull

getColumnOrNull

open override fun getColumnOrNull(name: String): DataColumn<Any?>

open override fun getColumnOrNull(index: Int): DataColumn<Any?>

open override fun <R> getColumnOrNull(column: ColumnReference<R>): DataColumn<R>?

open override fun getColumnOrNull(path: ColumnPath): DataColumn<Any?>

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