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GroupBy.First(String[]) Methode

  • Referenz

Definition

Namespace:
Microsoft.Data.Analysis
Assembly:
Microsoft.Data.Analysis.dll
Paket:
Microsoft.Data.Analysis v0.22.1
Paket:
Microsoft.Data.Analysis v0.20.1
Paket:
Microsoft.Data.Analysis v0.22.0
Paket:
Microsoft.Data.Analysis v0.22.0-preview.24522.7
Quelle:
GroupBy.cs
Quelle:
GroupBy.cs
Quelle:
GroupBy.cs

Zurückgeben des ersten Werts in jeder Gruppe

public abstract Microsoft.Data.Analysis.DataFrame First(params string[] columnNames);
abstract member First : string[] -> Microsoft.Data.Analysis.DataFrame
Public MustOverride Function First (ParamArray columnNames As String()) As DataFrame

Parameter

columnNames
String[]

Gibt zurück

DataFrame

Gilt für: