Matrix<T>.Aggregate
Returns a new matrix that aggregates the columns grouped by the specified vector.
Definition
Namespace: Extreme.Mathematics
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
C#
A new matrix, with rows indexed by the unique elements of groupingVector, and as values the result of applying aggregator to each group of each column.
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
public Matrix<U> AggregateColumnsBy<K, U>(
IList<K> groupingVector,
AggregatorGroup<U> aggregator
)
Parameters
- groupingVector IList<K>
- The vector that contains the group memberships.
- aggregator AggregatorGroup<U>
- The aggregator to apply to each group.
Type Parameters
- K
- The element type of the grouping vector.
- U
- The type of the result of the aggregator.
Return Value
Matrix<U>A new matrix, with rows indexed by the unique elements of groupingVector, and as values the result of applying aggregator to each group of each column.