共用方式為


GroupBy.Head(Int32) 方法

定義

傳回每個群組的第一個 numberOfRows 資料列

public abstract Microsoft.Data.Analysis.DataFrame Head(int numberOfRows);
abstract member Head : int -> Microsoft.Data.Analysis.DataFrame
Public MustOverride Function Head (numberOfRows As Integer) As DataFrame

參數

numberOfRows
Int32

傳回

適用於