2
假設一個數據幀被加載像這樣:刪除索引
let fr = Frame.ReadCsv("somedata.txt", hasHeaders=true, separators="\t")
|> Frame.indexRowsDate "Datetime"
它的輸出看起來是這樣的:
Open High Low Close
5/14/2015 7:02:00 AM -> 21.00000 21.01000 21.00000 21.01000
5/14/2015 7:03:00 AM -> 22.01000 22.01000 22.93000 22.9500
你如何變換數據框爲以下:
Datetime Open High Low Close
0 -> 5/14/2015 7:02:00 AM 21.00000 21.01000 21.00000 21.01000
1 -> 5/14/2015 7:03:00 AM 22.01000 22.01000 22.93000 22.9500
基本上,索引是如何從一個delele數據幀中刪除並轉換爲數據幀的列。