英文:
How can I specify the last column of a tibble within the rename_with() function's ".cols" argumnt in Dyplr?
问题
给定一个名为 "cars" 的 tibble：
cars |>
rename_with(~paste0(.x, ")"), .cols = (2:10))
上述代码在 tibble 的第2到第10列的列名后追加一个括号。如何从第二列到最后一列进行选择呢？你可以使用以下方法：
rename_with(~paste0(.x, ")"), .cols = (2:ncol(betterLifeIndicators)))
但我确信 dyplr 包内一定有更加优雅的方法。我还想知道是否有一种方法可以选择除第一列（或任何其他指定的列集）之外的所有列。
提前谢谢！
英文:
Given a tibble "cars"
cars |>
rename_with(~paste0(.x, ")"), .cols = (2:10))
appends a parenthesis to the names columns 2 to 10 of the tibble. How would one go about selecting from the second to the last column? I have accomplished it with
rename_with(~paste0(.x, ")"), .cols = (2:ncol(betterLifeIndicators)))
but I am sure there must be a more elegant way to do it within the dyplr package. I was also wondering if there is a way to select all columns except the first (or any other specified set).
Thank you in advance!
答案1
得分: 2
让我知道这是否有效。
# 最后一列
cars |>
rename_with(~paste0(.x, ")"), .cols = last_col())
# 倒数第二列
cars |>
rename_with(~paste0(.x, ")"), .cols = 2:last_col())
# 除了第一列之外的所有列（与上面相同）
cars |>
rename_with(~paste0(.x, ")"), .cols = -1)
英文:
Let me know if this works.
# Last column
cars |>
rename_with(~paste0(.x, ")"), .cols = last_col())
# 2nd to Last column
cars |>
rename_with(~paste0(.x, ")"), .cols = 2:last_col())
# All but first (same as above)
cars |>
rename_with(~paste0(.x, ")"), .cols = -1)
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