在ggplot2中,我如何更改选定构面的边界? [英] In ggplot2, how can I change the border of selected facets?
问题描述
从ggplot2帮助页面获取图表:
ggplot(mtcars,aes(factor(cyl)))+ geom_bar( )+ facet_grid(。〜vs)
是否可以更改边框(颜色和/或厚度)只有选定的面板?例如,我想改变faceting变量 vs
的方面的边界。
我尝试添加
主题(panel.border = element_rect(size = 3,color =red,fill = NA ))
但该解决方案会改变所有边界。
我也在考虑使用 geom_rect
或 geom_polygon
,但我不确定如何将它限制为一个绘图。
我偶然发现了这个 thread on the R help list,but the solutions does not work for me
关于如何向前移动的任何建议都将不胜感激。
这个?$ b $ $ p $
dd < - data.frame(vs = c(0,1),ff = factor(0:1 ))
ggplot()+ geom_rect(data = dd, aes(fill = ff),
xmin = -Inf,xmax = Inf,ymin = -Inf,ymax = Inf,alpha = 0.15)+
geom_bar(data = mtcars,aes(factor(cyl) ))+ facet_grid(。 〜vs)+
scale_fill_manual(values = c(NA,red),breaks = NULL)
Taking the graph from ggplot2 help pages:
ggplot(mtcars, aes(factor(cyl))) + geom_bar() + facet_grid(. ~ vs)
Is it possible to change the border (colour and/or thickness) of only selected panels? I'd like to, for instance, change the border of the facet of '1' of faceting variable vs
.
I tried adding
theme(panel.border = element_rect(size = 3, colour = "red", fill = NA))
but that solution changes all borders.
I was also thinking about using geom_rect
or geom_polygon
but am not sure how to limit it to one plot either.
I stumbled upon this thread on R help list, but the solutions didn't work for me
Any suggestions on how to move forward will be much appreciated.
How about filling it with a colour like this?
dd <- data.frame(vs = c(0,1), ff = factor(0:1))
ggplot() + geom_rect(data=dd, aes(fill=ff),
xmin=-Inf, xmax=Inf, ymin=-Inf, ymax=Inf, alpha=0.15) +
geom_bar(data = mtcars, aes(factor(cyl))) + facet_grid(. ~ vs) +
scale_fill_manual(values=c(NA, "red"), breaks=NULL)
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