R：ggplot2，我可以让facet / strip文字环绕吗？ [英] R: ggplot2, can I make the facet/strip text wrap around?

问题描述

我发现这个非常有用的代码来包装文本：

I found this very useful code for wrapping text here:

 wrapper <- function(x, ...) paste(strwrap(x, ...), collapse = "\n")`

 my_title <- "This is a really long title of a plot that I want to nicely wrap and fit onto the plot without having to manually add the backslash n, but at the moment it does not"

 r + geom_smooth() + opts(title = wrapper(my_title, width = 20))

我想用它来包装文本在facet / strip中，但不要不知道如何。

I would like to use it to wrap the text in a facet/strip but don't know how.

 p + geom_bar(stat="identity")+facet_wrap(~variable1) + 
    opts(strip.text.x=theme_text(size=12, face="bold")

是否传递给strip .text.x选项？

Is it passed to the strip.text.x options?

推荐答案

由于此问题已发布，新的 label_wrap_gen（） code>函数与 ggplot2 （> = 1.0.0，我想）处理这个很好：

Since this question was posted, the new label_wrap_gen() function with ggplot2 (>= 1.0.0, I think) handles this nicely:

facet_wrap(~variable1, labeller = label_wrap_gen())

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