如何删除R数据框中的尾随零 [英] How to remove trailing zeros in R dataframe

问题描述

我有一个如下所示的 R data.frame:

I have a R data.frame that looks like this:

   Gene    Score
1  AAT2 15.40100
2  ACB1  5.11880
3  ACF2 15.04500
4 ADE16  3.04080
5 ADE17  0.28143
6  ADE4 19.79200

但是我需要去掉尾随的零才能得到:

However I need to get rid of the trailing zeros in order to get:

   Gene    Score
1  AAT2 15.401
2  ACB1  5.1188
3  ACF2 15.045
4 ADE16  3.0408
5 ADE17  0.28143
6  ADE4 19.792

基本上我试图将分数列中的位数设置为 5 位数.我如何在 R 中做到这一点?

Basically I am trying to set the number of digits in the score column to 5 digits. How can I do this in R?

推荐答案

如果你想查看你的 Score 数据作为文本，没有尾随零，然后使用:

If you want to view your Score data as text, with no trailing zeroes, then use:

df_view <- df[c("Gene", "Score")]
df_view$Score <- sub("0+$", "", as.character(df_view$Score))

df_view

   Gene   Score
1  AAT2  15.401
2  ACB1  5.1188
3  ACF2  15.045
4 ADE16  3.0408
5 ADE17 0.28143
6  ADE4  19.792

数据:

df <- data.frame(Gene=c("AAT2", "ACB1", "ACF2", "ADE16", "ADE17", "ADE4"),
                 Score=c(15.40100, 5.11880, 15.04500, 3.04080, 0.28143, 19.79200),
                 stringsAsFactors=FALSE)

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