ggplot2 y轴坐标不在日志范围内显示 [英] ggplot2 y-axis ticks not showing up on a log scale

问题描述

我尝试使用ggplot2来创建boxplot图表，但我无法在ggplot2 webiste的示例中显示标记。

  apples<  -  data.frame（fruit = c（rep（苹果，30）），味道= runif（30,30,50）
 banana < -  data.frame（fruit = c（rep（banana，30）），taste = runif（30,300 ，500））
 orange < -  data.frame（fruit = c（rep（orange，30）），taste = runif（30,3000,5000））
 fruits <-rbind （苹果，香蕉，橘子）
  

如果我绘制在，您可以通过以下方式获得相同的效果：
$ b

  library（ggplot2）
 library（scales）
 ggplot（fruits，aes（fruit，taste） ）+ 
 geom_boxplot（）+ 
 scale_y_log10（breaks = trans_breaks（'log10'，function（x）10 ^ x），
 labels = trans_format（'log10'，math_format（10 ^ x）））
  

I am trying to use ggplot2 to create a boxplot graph but I am having trouble getting the ticks to show up as it does in the examples of the ggplot2 webiste.

Here is some fake data of tastiness of fruits:

apples <- data.frame(fruit=c(rep("apple", 30)), taste=runif(30, 30, 50)
banana <- data.frame(fruit=c(rep("banana", 30)), taste=runif(30, 300, 500))
orange <- data.frame(fruit=c(rep("orange", 30)), taste=runif(30, 3000, 5000))
fruits <- rbind(apples,banana,orange)

If I plot as in the ggplot2 website example the y-axis scale should looks something like:

Instead I get an axis like:

ggplot(fruits, aes(fruit, taste) ) +  geom_boxplot() + scale_y_log10()

How would I get the y-axis scale on scientific notation?

解决方案

I'm assuming that you are using the new 0.9.0 version of ggplot2, which underwent a large amount of changes. This happens to be one of them, I believe.

If I recall correctly, enough people complained about the exponential format being the default, that this was changed. As per the transition guide you can achieve the same effect via:

library(ggplot2)
library(scales)
ggplot(fruits, aes(fruit, taste) ) +  
    geom_boxplot() + 
    scale_y_log10(breaks = trans_breaks('log10', function(x) 10^x),
                  labels = trans_format('log10', math_format(10^.x)))

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