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    • 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
    • MultipleMissingValueAction Enumeration
    • Parameter(T) Class
    • ParameterVector(T) Class
    • Pivot Class
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    • RankTiebreaker Enumeration
    • Recurrence Class
    • SortOrder Enumeration
    • SpecialBins Enumeration
    • Subset Class
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    • TypePreservingAggregatorGroup Class
    • VectorExtensions Class
  • Aggregators Class
    • Properties
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    • Count Property
    • CountUnique Property
    • Covariance Property
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    • First Property
    • FirstQuartile Property
    • Kurtosis Property
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    • Max Property
    • Mean Property
    • Median Property
    • Min Property
    • Mode Property
    • Range Property
    • Skewness Property
    • StandardDeviation Property
    • Sum Property
    • ThirdQuartile Property
    • Variance Property
    • WeightedMean Property
    • WeightedStandardDeviation Property
    • WeightedVariance Property
  • First Property

AggregatorsFirst Property

Extreme Optimization Numerical Libraries for .NET Professional
Gets an aggregator that returns the first non-missing value.

Namespace:  Extreme.DataAnalysis
Assembly:  Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.1
Syntax
C#
VB
C++
F#
Copy
public static TypePreservingAggregatorGroup First { get; }
Public Shared ReadOnly Property First As TypePreservingAggregatorGroup
	Get
public:
static property TypePreservingAggregatorGroup^ First {
	TypePreservingAggregatorGroup^ get ();
}
static member First : TypePreservingAggregatorGroup with get

Property Value

Type: TypePreservingAggregatorGroup
Remarks
This aggregator returns a value of the same type as the input values.
See Also

Reference

Aggregators Class
Extreme.DataAnalysis Namespace

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