如何防止小数位数::百分比加小数 [英] How to prevent scales::percent from adding decimal

问题描述

这是几天前开始的事情，scales::percent将在其标签中添加一个小数位，而且我似乎无法禁用该小数位以在y轴上显示整数值.

This started happening a few days ago, that scales::percent would add a decimal place in its labels, and I can't seem to disable this decimal to display integer values on y-axis.

library(dplyr)
library(ggplot2)

mtcars %>% 
  count(cyl) %>% 
  mutate(prop = n / sum(n)) %>% 
  ggplot(aes(x = cyl, y = prop)) + 
  geom_point() + 
  scale_y_continuous(labels = scales::percent)

推荐答案

也许不是您问题的直接答案，但我在类似情况下使用了scales::percent_format及其accuracy参数(要舍入的数字")设置.

Perhaps not a direct answer to your question, but I have used scales::percent_format and its accuracy argument ("Number to round to") in similar settings.

mtcars %>% 
    count(cyl) %>% 
    mutate(prop = n / sum(n)) %>% 
    ggplot(aes(x = cyl, y = prop)) + 
    geom_point() + 
    scale_y_continuous(labels = scales::percent_format(accuracy = 5L))

我认为percent的行为在scales 1.0.0中已更改.参见新闻和代码中的更新

I think the behaviour of percent was changed in scales 1.0.0. See NEWS and updates in code here.

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