我有 2 个 csv 数据文件。1 分钟酒吧和其他 5 分钟酒吧。这两个文件的格式相同。
文件 1 是
> 2007-01-02 10:00:00.000,NIFTY,ABB,2007-01-02 10:00:00.000,750.4,750.4,750,750.2
2007-01-02 10:01:00.000,NIFTY,ABB,2007-01-02 10:01:00.000,750.38,750.4,749.8,749.8
2007-01-02 10:02:00.000,NIFTY,ABB,2007-01-02 10:02:00.000,749.8,750,749.6,750
2007-01-02 10:03:00.000,NIFTY,ABB,2007-01-02 10:03:00.000,749.6,752.4,749.6,752
2007-01-02 10:04:00.000,NIFTY,ABB,2007-01-02 10:04:00.000,752,755.8,752,754.2
2007-01-02 10:05:00.000,NIFTY,ABB,2007-01-02 10:05:00.000,754.02,755,752.05,753.6
2007-01-02 10:06:00.000,NIFTY,ABB,2007-01-02 10:06:00.000,753,753,751,751
2007-01-02 10:07:00.000,NIFTY,ABB,2007-01-02 10:07:00.000,751,751.62,750.5,751
2007-01-02 10:08:00.000,NIFTY,ABB,2007-01-02 10:08:00.000,750.8,751,750.2,750.62
文件 2 是
> 2007-01-02 10:00:00.000,NIFTY,ABB,2007-01-02 10:00:00.000,750.2,754.2,749.8,753.6
2007-01-02 10:05:00.000,NIFTY,ABB,2007-01-02 10:05:00.000,753.6,753.6,750.62,752.8
2007-01-02 10:10:00.000,NIFTY,ABB,2007-01-02 10:10:00.000,752.8,752.8,750.2,751.5
2007-01-02 10:15:00.000,NIFTY,ABB,2007-01-02 10:15:00.000,751.5,752,751,751.6
2007-01-02 10:20:00.000,NIFTY,ABB,2007-01-02 10:20:00.000,751.6,751.6,750.8,751
2007-01-02 10:25:00.000,NIFTY,ABB,2007-01-02 10:25:00.000,751,751.2,749,749
2007-01-02 10:30:00.000,NIFTY,ABB,2007-01-02 10:30:00.000,749,751.8,749,751.8
2007-01-02 10:35:00.000,NIFTY,ABB,2007-01-02 10:35:00.000,751.8,752,751.1,751.4
现在我运行 a <- read.csv("file1.csv")
class(a[,1:4]) 是因数
class(a[,5:8]) 是数字
而对于文件 2
b <- read.csv("file2.csv")
class(b[,1:4]) 是因子
class(b[,5:8]) 是因子。
列 5:8 的类别为何是因素。这个因素类型的数据不让我继续我的分析。任何想法。