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FrameExtensions似乎仅支持通过单列进行排序。 OrderBy有一个“.ThenBy”选项,但似乎已被弃用。任何其他方式排序“日期”,然后通过“RECN”?C#Deedle按多列进行排序
代码:
using System;
using Deedle;
namespace test
{
class MainClass
{
public static void Main (string[] args)
{
var df1 = Frame.ReadCsv (@"../../test.csv");
Console.WriteLine(df1.GetType());
df1.Print();
FrameExtensions.SortRows (df1, "DATE").Print();
}
}
}
这不起作用,或者:
df1.GroupRowsBy<int> ("RECN").GroupRowsBy<DateTime> ("DATE").Print();
df1.GroupRowsBy<DateTime> ("DATE").GroupRowsBy<int> ("RECN").Print();
数据:
NAME,TYPE,DATE,RECN,COMM
Kermit,Frog,06/30/14,1,1test
Kermit,Frog,06/30/14,1,2test
Ms. Piggy,Pig,07/01/14,2,1test
Fozzy,Bear,06/29/14,3,1test
Kermit,Frog,07/02/14,1,3test
Kermit,Frog,07/02/14,1,4test
Kermit,Frog,07/02/14,1,5test
Ms. Piggy,Pig,07/02/14,2,3test
Fozzy,Bear,07/02/14,3,2test
Ms. Piggy,Pig,07/02/14,2,2test
呵呵。这似乎不符合FrameExtensions.SortRows的指定语法,但它似乎工作:FrameExtensions.SortRows(df1,“RECN”)。SortRows(“DATE”)。Print(); – user3478193