在R中使用ggplot2和facet_wrap显示多个轴标签

发布于 2024-08-07 21:36:04 字数 739 浏览 2 评论 0原文

我用 ggplot2 创建了一个漂亮的facet_wrap 密度图。我希望每个面板都有 x 和 y 轴标签，而不是仅在左侧有 y 轴标签，在底部有 x 轴标签。我现在所拥有的看起来像这样：

library(ggplot2)
myGroups <- sample(c("Mo", "Larry", "Curly"), 100, replace=T)
myValues <- rnorm(300)
df <- data.frame(myGroups, myValues)


p <- ggplot(df)  + 
  geom_density(aes(myValues), fill = alpha("#335785", .6)) + 
  facet_wrap(~ myGroups)
p

_{（来源：cerebralmastication.com）}

看起来这应该很简单，但我的 Google Fu 太差了，找不到答案。

原文

I've got a nice facet_wrap density plot that I have created with ggplot2. I would like for each panel to have x and y axis labels instead of only having the y axis labels along the left side and the x labels along the bottom. What I have right now looks like this:

library(ggplot2)
myGroups <- sample(c("Mo", "Larry", "Curly"), 100, replace=T)
myValues <- rnorm(300)
df <- data.frame(myGroups, myValues)


p <- ggplot(df)  + 
  geom_density(aes(myValues), fill = alpha("#335785", .6)) + 
  facet_wrap(~ myGroups)
p

Which returns:

_{(source: cerebralmastication.com)}

It seems like this should be simple, but my Google Fu has been too poor to find an answer.

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╭ゆ眷念 2024-08-14 21:36:04

您可以通过在facet_wrap调用中包含scales =“free”选项来实现此目的：

myGroups <- sample(c("Mo", "Larry", "Curly"), 100, replace=T)
myValues <- rnorm(300)
df <- data.frame(myGroups, myValues)


p <- ggplot(df)  + 
  geom_density(aes(myValues), fill = alpha("#335785", .6)) + 
  facet_wrap(~ myGroups, scales="free")
p

You can do this by including the scales="free" option in your facet_wrap call:

myGroups <- sample(c("Mo", "Larry", "Curly"), 100, replace=T)
myValues <- rnorm(300)
df <- data.frame(myGroups, myValues)


p <- ggplot(df)  + 
  geom_density(aes(myValues), fill = alpha("#335785", .6)) + 
  facet_wrap(~ myGroups, scales="free")
p

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很糊涂小朋友 2024-08-14 21:36:04

简短的回答：你不能那样做。对于 3 个图可能有意义，但是如果您有一个包含 32 个图的大网格怎么办？那样会显得又吵又糟糕。 GGplot 的理念是用最少的定制做正确的事情，这自然意味着你不能像其他包那样定制太多东西。

长答案：您可以通过构建三个单独的 ggplot 对象并将它们组合起来来伪造它。但这不是一个非常通用的解决方案。以下是 Hadley 书中的一些代码，假设您已经创建了 ggplot 对象 a、b 和 c。它将 a 放在顶行，将 b 和 c 放在底行。

grid.newpage()
pushViewport(viewport(layout=grid.layout(2,2)))
vplayout<-function(x,y)
    viewport(layout.pos.row=x,layout.pos.col=y)
print(a,vp=vplayout(1,1:2))
print(b,vp=vplayout(2,1))
print(c,vp=vplayout(2,2))

Short answer: You can't do that. It might make sense with 3 graphs, but what if you had a big lattice of 32 graphs? That would look noisy and bad. GGplot's philosophy is about doing the right thing with a minimum of customization, which means, naturally, that you can't customize things as much as other packages.

Long answer: You could fake it by constructing three separate ggplot objects and combining them. But it's not a very general solution. Here's some code from Hadley's book that assumes you've created ggplot objects a, b, and c. It puts a in the top row, with b and c in the bottom row.

grid.newpage()
pushViewport(viewport(layout=grid.layout(2,2)))
vplayout<-function(x,y)
    viewport(layout.pos.row=x,layout.pos.col=y)
print(a,vp=vplayout(1,1:2))
print(b,vp=vplayout(2,1))
print(c,vp=vplayout(2,2))

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