core/org.jetbrains.kotlinx.dataframe.api/reduce

reduce

internal fun <T, G> GroupBy<T, G>.reduce(reducer: Selector<DataFrame<G>, DataRow<G>?>): ReducedGroupBy<T, G>

internal fun <T> Pivot<T>.reduce(reducer: Selector<DataFrame<T>, DataRow<T>?>): ReducedPivot<T>

internal fun <T> PivotGroupBy<T>.reduce(reducer: Selector<DataFrame<T>, DataRow<T>?>): ReducedPivotGroupBy<T>