改变方面之间的水平间距（ggplot2） [英] Alter just horizontal spacing between facets (ggplot2)

问题描述

ggplot2 能够使用参数 panel.margin 在选择采用。这似乎改变了水平和垂直间距。有没有办法改变水平或垂直的间距而不改变其他的？

结果和期望结果的例子： p>

  mtcars [，c（cyl，am，gear）] < -  lapply（mtcars [，c cyl，am，gear）]，as.factor）
 
p < -  ggplot（mtcars，aes（mpg，wt，group = cyl））+ 
 geom_line （aes（color = cyl））+ 
 geom_point（aes（shape = cyl））+ 
 facet_grid（gear〜am）+ 
 theme_bw（）
 
p + opts（panel.margin = unit（1，lines））
  

所以它现在看起来像：

我们如何做到这一点看起来更像是：

解决方案

截至2015年7月9日， panel.margin.x 和 panel.margin.y 似乎已经被执行

  p < -  p + theme（panel.margin.x = unit（0.5，lines）+ panel.margin.y =单位（1，行））
  

截至2016年12月15日，'panel.spacing'和'panel.spacing.x'在r 3.3.2和ggplot2 2.2.0中实现

  p < -  p +主题（panel.spacing.x = unit（0.5，lines），panel.spacing.y = unit（1，lines））
  

ggplot2 has the ability to change the margins between a faceted plot using the argument panel.margin in opts. This seems to change both horizontal and vertical spacing. Is there a way to change the spacing of either horizontal or vertical without changing the other?

An example with outcome and desired outcome:

mtcars[, c("cyl", "am", "gear")] <- lapply(mtcars[, c("cyl", "am", "gear")], as.factor)

p <- ggplot(mtcars, aes(mpg, wt, group = cyl)) + 
    geom_line(aes(color=cyl)) +
    geom_point(aes(shape=cyl)) + 
    facet_grid(gear ~ am) +
    theme_bw()        

p + opts(panel.margin = unit(1, "lines")) 

So it currently looks like:

How can we make it look more like:

解决方案

As of July 9th, 2015, the panel.margin.x and panel.margin.y seem to have been implemented

p <- p + theme(panel.margin.x=unit(0.5, "lines") + panel.margin.y=unit(1,"lines"))

As of December 15, 2016, 'panel.spacing' and 'panel.spacing.x' is implemented in r 3.3.2 and ggplot2 2.2.0

p <- p + theme(panel.spacing.x=unit(0.5, "lines"),panel.spacing.y=unit(1, "lines"))

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