我有一个如下所示的数据框,想要改变其列的顺序。我希望列按照以下顺序排列:1、4、2、5、3、6。我该如何重新排序?请注意,这只是一个小例子,我有很多更多的列需要按照这种方式排序。通用公式为第一批为1+3x,第二批为2+3x,最后一批为3+3x,其中x=0,1,2,....
dput(medg)
structure(list(X1 = c(1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3,
3, 3, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 1, 2, 3, 1,
2, 3), X2 = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 2, 2, 2),
X3 = c(2, 3, 1, 2, 3, 1, 3, 1, 2, 3, 1, 2, 1, 2, 3, 1, 2,
3, 2, 3, 1, 2, 3, 1, 3, 1, 2, 3, 1, 2, 1, 2, 3, 1, 2, 3),
X4 = c(1, 1, 2, 2, 2, 1, 1, 2, 2, 2, 1, 1, 2, 2, 2, 1, 1,
1, 2, 2, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 2),
X5 = c(0, 0.2622587, 0.1040687, 0.1409907, 0, 0, 0.6184543,
0.9525439, 0.7830234, 0.3400703, 0.2622587, 0.6184543, 0.3765996,
0.907851, 0.5296791, 0.1040687, 0.9525439, 0.3765996, 0.5567241,
0.3325466, 0.1409907, 0.7830234, 0.907851, 0.5567241, 0.2221638,
0, 0.3400703, 0.5296791, 0.3325466, 0.2221638, 0, 0, 0, 0,
0, 0)), class = "data.frame", row.names = c(NA, -36L))
```