ggplot：如何增加刻面图之间的间距？

Question

我有几个多面的直方图（通过下面的命令获得），它们很好地一个接一个地绘制。我想增加它们之间的间距，但是它们很紧。

我查看了doc，但未找到此参数。

提前致谢。

qplot (Happiness.Level, Number.of.Answers, data=mydata, geom="histogram") + facet_grid (Location ~ .) 

Answer 1

使用theme功能：

library(grid)

p + theme(panel.spacing = unit(2, "lines"))

另见：Slicing plots generated by ggplot2

Answer 2

只是添加到@rcs 响应中：

# Change spacing between facets on both axis
p + theme(panel.spacing = unit(2, "lines"))

# Change horizontal spacing between facets
p + theme(panel.spacing.x = unit(2, "lines"))

# Change vertical spacing between facets
p + theme(panel.spacing.y = unit(2, "lines"))