core/org.jetbrains.kotlinx.dataframe.impl.aggregation.aggregators.multipleColumnsHandlers/FlatteningMultipleColumnsHandler/aggregateMultipleColumns

aggregateMultipleColumns

open override fun aggregateMultipleColumns(columns: Sequence<DataColumn<Value?>>): Return

Aggregates the data in the multiple given columns and computes a single resulting value. The columns are flattened into a single list of values; then the aggregation function is called with the common type of the columns.