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  • Extreme.DataAnalysis
    • Accumulator(T, U) Class
    • Aggregator(T, U) Class
    • Aggregator2(T, U) Class
    • Aggregator2Group Class
    • Aggregator2Group(T) Class
    • AggregatorGroup Class
    • AggregatorGroup(T) Class
    • Aggregators Class
    • BoundaryIntervalBehavior Enumeration
    • CategoricalEncoding Class
    • DataFrame Class
    • DataFrame(R, C) Class
    • DataFrameRow(R, C) Class
    • DateTimeExtensions Class
    • DateTimeUnit Enumeration
    • Direction Enumeration
    • Grouping Class
    • Grouping(TKey) Class
    • Histogram Class
    • Histogram(T) Class
    • IAccumulator(T, U) Interface
    • IAccumulator2(T, U) Interface
    • IAccumulator2(T, U, V) Interface
    • IAggregator Interface
    • IAggregator(T) Interface
    • IAggregator2 Interface
    • IAggregator2(T) Interface
    • IDataFrame Interface
    • IGrouping Interface
    • IIndex Interface
    • Index Class
    • Index(T) Class
    • IntervalIndex(T) Class
    • IPivot Interface
    • JoinIndex Class
    • JoinType Enumeration
    • MissingValueAction Enumeration
    • MissingValueException Class
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    • Parameter(T) Class
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    • RankTiebreaker Enumeration
    • Recurrence Class
    • SortOrder Enumeration
    • SpecialBins Enumeration
    • Subset Class
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    • TypePreservingAggregatorGroup Class
    • VectorExtensions Class
  • DataFrame(R, C) Class
    • DataFrame(R, C) Constructor
    • Properties
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    • Operators
  • Methods
    • AddColumn Method Overloads
    • Aggregate Method Overloads
    • AggregateBy Method Overloads
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    • ApplyWith(T) Method
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    • Describe Method
    • GetColumn Method Overloads
    • GetColumns Method Overloads
    • GetColumnsAt Method Overloads
    • GetEnumerator Method
    • GetNearestRow Method
    • GetNearestRowAs(T) Method
    • GetNearestRows Method
    • GetRow Method
    • GetRowAs(T) Method
    • GetRowAt Method
    • GetRowAtAs(T) Method
    • GetRows Method Overloads
    • GetRowsAt Method
    • GroupBy Method Overloads
    • GroupedBy(R1) Method
    • Head Method
    • MakeCategorical Method Overloads
    • MakeCategoricalAt Method Overloads
    • Map Method Overloads
    • MapAndAppend Method Overloads
    • MapAndInsertAfter Method Overloads
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    • PivotBy(R1, C1) Method
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    • RemoveColumnsWithMissingValues Method
    • RemoveRowIndex Method Overloads
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    • RenameColumn Method Overloads
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  • AggregateBy Method Overloads
    • AggregateBy(R1) Method (C, AggregatorGroup[])
    • AggregateBy(R1) Method (C, ValueTuple(C, AggregatorGroup)[])
    • AggregateBy(R1, T) Method (C, AggregatorGroup(T))
    • AggregateBy(R1, T, U) Method (C, Func(Vector(T), U))
    • AggregateBy(R1) Method (Grouping(R1), AggregatorGroup[])
    • AggregateBy(R1) Method (Grouping(R1), IDictionary(C, AggregatorGroup))
    • AggregateBy(R1) Method (Grouping(R1), ValueTuple(C, AggregatorGroup)[])
    • AggregateBy(R1, T) Method (Grouping(R1), AggregatorGroup(T))
    • AggregateBy(R1) Method (IGrouping, AggregatorGroup[])
    • AggregateBy(R1) Method (IGrouping, ValueTuple(C, AggregatorGroup)[])
    • AggregateBy(R1, T) Method (IGrouping, AggregatorGroup(T))
    • AggregateBy(R1) Method (IList(R1), AggregatorGroup[])
    • AggregateBy(R1) Method (IList(R1), ValueTuple(C, AggregatorGroup)[])
    • AggregateBy(R1, T) Method (IList(R1), AggregatorGroup(T))
    • AggregateBy(R1, C1) Method (Grouping(R1), IEnumerable(ValueTuple(C, AggregatorGroup)), Index(C1))
  • AggregateBy(R1, T) Method (Grouping(R1), AggregatorGroup(T))

DataFrameR, CAggregateByR1, T Method (GroupingR1, AggregatorGroupT)

Extreme Optimization Numerical Libraries for .NET Professional
Returns a new data frame that aggregates the columns according to the specified grouping.

Namespace:  Extreme.DataAnalysis
Assembly:  Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.1
Syntax

C#
VB
C++
F#
Copy
public DataFrame<R1, C> AggregateBy<R1, T>(
	Grouping<R1> grouping,
	AggregatorGroup<T> aggregator
)
Public Function AggregateBy(Of R1, T) ( 
	grouping As Grouping(Of R1),
	aggregator As AggregatorGroup(Of T)
) As DataFrame(Of R1, C)
public:
generic<typename R1, typename T>
DataFrame<R1, C>^ AggregateBy(
	Grouping<R1>^ grouping, 
	AggregatorGroup<T>^ aggregator
)
member AggregateBy : 
        grouping : Grouping<'R1> * 
        aggregator : AggregatorGroup<'T> -> DataFrame<'R1, 'C> 

Parameters

grouping
Type: Extreme.DataAnalysisGroupingR1
The grouping object.
aggregator
Type: Extreme.DataAnalysisAggregatorGroupT
The aggregator to apply to each group.

Type Parameters

R1
The element type of the grouping.
T
The type of the result of the aggregator.

Return Value

Type: DataFrameR1, C
A new data frame, with rows indexed by the index associated with grouping, and as values the result of applying aggregator to each group of each column.
Exceptions

ExceptionCondition
ArgumentNullException

grouping is .

-or-

aggregator is .

InvalidCastException

The index of grouping cannot be cast to have element type R1.

See Also

Reference

DataFrameR, C Class
AggregateBy Overload
Extreme.DataAnalysis Namespace

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