Matrix<T>.Aggregate
Returns a new matrix that aggregates the rows grouped by the specified row.
Definition
Namespace: Extreme.Mathematics
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
C#
A new matrix, with columns indexed by the unique elements of the row with key groupingRowKey, and values the result of applying aggregator to each group of the remaining rows.
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
public Matrix<U> AggregateRowsBy<C, U>(
C groupingRowKey,
AggregatorGroup<U> aggregator
)
Parameters
- groupingRowKey C
- The key of the grouping row.
- aggregator AggregatorGroup<U>
- The aggregator to apply to each group.
Type Parameters
- C
- The type of the row keys.
- U
- The type of the result of the aggregator.
Return Value
Matrix<U>A new matrix, with columns indexed by the unique elements of the row with key groupingRowKey, and values the result of applying aggregator to each group of the remaining rows.