DataFrame.Item[IEnumerable 屬性

定義

命名空間:

Microsoft.Data.Analysis

組件:

Microsoft.Data.Analysis.dll

套件:

Microsoft.Data.Analysis v0.21.1

多載

Item[IEnumerable<Int64>]	使用 中的數據列索引傳回新的 DataFrame rowIndices
Item[String]	根據的索引器 Name
Item[IEnumerable<Int32>]	使用 中的數據列索引傳回新的 DataFrame rowIndices
Item[Int64, Int32]	要取得或設定值的索引器。
Item[PrimitiveDataFrameColumn<Int64>]	使用 中的數據列索引傳回新的 DataFrame rowIndices
Item[PrimitiveDataFrameColumn<Int32>]	使用 中的數據列索引傳回新的 DataFrame rowIndices
Item[PrimitiveDataFrameColumn<Boolean>]	使用篩選中的布爾值傳回新的 DataFrame
Item[IEnumerable<Boolean>]	使用中的布爾值傳回新的DataFrame rowFilter

Item[IEnumerable<Int64>]

使用 中的數據列索引傳回新的 DataFrame rowIndices

public Microsoft.Data.Analysis.DataFrame this[System.Collections.Generic.IEnumerable<long> rowIndices] { get; }

member this.Item(seq<int64>) : Microsoft.Data.Analysis.DataFrame

Default Public ReadOnly Property Item(rowIndices As IEnumerable(Of Long)) As DataFrame

參數

rowIndices

IEnumerable<Int64>

屬性值

DataFrame

Item[String]

根據的索引器 Name

public Microsoft.Data.Analysis.DataFrameColumn this[string columnName] { get; set; }

member this.Item(string) : Microsoft.Data.Analysis.DataFrameColumn with get, set

Default Public Property Item(columnName As String) As DataFrameColumn

參數

columnName

String

的名稱 DataFrameColumn

屬性值

DataFrameColumn

DataFrameColumn如果存在，則為 。

例外狀況

ArgumentException

如果 columnName 不存在於這個 中，則會擲回 DataFrame

Item[IEnumerable<Int32>]

使用 中的數據列索引傳回新的 DataFrame rowIndices

public Microsoft.Data.Analysis.DataFrame this[System.Collections.Generic.IEnumerable<int> rowIndices] { get; }

member this.Item(seq<int>) : Microsoft.Data.Analysis.DataFrame

Default Public ReadOnly Property Item(rowIndices As IEnumerable(Of Integer)) As DataFrame

參數

rowIndices

IEnumerable<Int32>

屬性值

DataFrame

Item[Int64, Int32]

要取得或設定值的索引器。

public object this[long rowIndex, int columnIndex] { get; set; }

member this.Item(int64 * int) : obj with get, set

Default Public Property Item(rowIndex As Long, columnIndex As Integer) As Object

參數

rowIndex

Int64

以零起始的數據列索引

columnIndex

Int32

以零起始的數據行索引

屬性值

Object

儲存在和交集的值rowIndexcolumnIndex

Item[PrimitiveDataFrameColumn<Int64>]

使用 中的數據列索引傳回新的 DataFrame rowIndices

public Microsoft.Data.Analysis.DataFrame this[Microsoft.Data.Analysis.PrimitiveDataFrameColumn<long> rowIndices] { get; }

member this.Item(Microsoft.Data.Analysis.PrimitiveDataFrameColumn<int64>) : Microsoft.Data.Analysis.DataFrame

Default Public ReadOnly Property Item(rowIndices As PrimitiveDataFrameColumn(Of Long)) As DataFrame

參數

rowIndices

PrimitiveDataFrameColumn<Int64>

數據列索引的數據行

屬性值

DataFrame

Item[PrimitiveDataFrameColumn<Int32>]

使用 中的數據列索引傳回新的 DataFrame rowIndices

public Microsoft.Data.Analysis.DataFrame this[Microsoft.Data.Analysis.PrimitiveDataFrameColumn<int> rowIndices] { get; }

member this.Item(Microsoft.Data.Analysis.PrimitiveDataFrameColumn<int>) : Microsoft.Data.Analysis.DataFrame

Default Public ReadOnly Property Item(rowIndices As PrimitiveDataFrameColumn(Of Integer)) As DataFrame

參數

rowIndices

PrimitiveDataFrameColumn<Int32>

數據列索引的數據行

屬性值

DataFrame

Item[PrimitiveDataFrameColumn<Boolean>]

使用篩選中的布爾值傳回新的 DataFrame

public Microsoft.Data.Analysis.DataFrame this[Microsoft.Data.Analysis.PrimitiveDataFrameColumn<bool> rowFilter] { get; }

member this.Item(Microsoft.Data.Analysis.PrimitiveDataFrameColumn<bool>) : Microsoft.Data.Analysis.DataFrame

Default Public ReadOnly Property Item(rowFilter As PrimitiveDataFrameColumn(Of Boolean)) As DataFrame

參數

rowFilter

PrimitiveDataFrameColumn<Boolean>

布爾值的數據行

屬性值

DataFrame

Item[IEnumerable<Boolean>]

使用中的布爾值傳回新的DataFrame rowFilter

public Microsoft.Data.Analysis.DataFrame this[System.Collections.Generic.IEnumerable<bool> rowFilter] { get; }

member this.Item(seq<bool>) : Microsoft.Data.Analysis.DataFrame

Default Public ReadOnly Property Item(rowFilter As IEnumerable(Of Boolean)) As DataFrame

參數

rowFilter

IEnumerable<Boolean>

屬性值

DataFrame