如何使用listname更改dafaframe列名

I have list y like below. I want to change the first column name of each data frame (rn) to the name of the data frame (SA, TA). So it will look like y1.

下面列出了y。我想将每个数据帧(rn)的第一列名称更改为数据帧的名称(SA, TA)。它看起来像y。

> y
$SA
          rn  X1   X2   X3  X4   X5  X6
1: timepoint   0 3.75 4.25 4.5 4.75   5
2:      plot 234  304  285 279  256 238

$TA
          rn  X7  X8   X9  X10  X11 X12
1: timepoint   0   5 4.25 3.75 4.75 4.5
2:      plot 208 299  272  261  254 218

> y1
$SA
          SA  X1   X2   X3  X4   X5  X6
1: timepoint   0 3.75 4.25 4.5 4.75   5
2:      plot 234  304  285 279  256 238

$TA
          TA  X7  X8   X9  X10  X11 X12
1: timepoint   0   5 4.25 3.75 4.75 4.5
2:      plot 208 299  272  261  254 218

1 个解决方案

#1

Those list elements look like data tables, so it should be as simple as

这些列表元素看起来像数据表，所以应该简单到

y1 <- Map(setnames, y, "rn", names(y))

Replace "rn" with 1 if you want to index by the first column instead of by the column name "rn".

如果你想索引第一列而不是列名“rn”，就用1替换“rn”。

#1