如何在其中一个方面添加一条线? [英] How can I add a line to one of the facets?
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问题描述
ggplot(all, aes(x=area, y=nq)) +
geom_point(size=0.5) +
geom_abline(data = levelnew, aes(intercept=log10(exp(interceptmax)), slope=fslope)) + #shifted regression line
scale_y_log10(labels = function(y) format(y, scientific = FALSE)) +
scale_x_log10(labels = function(x) format(x, scientific = FALSE)) +
facet_wrap(~levels) +
theme_bw() +
theme(panel.grid.major = element_line(colour = "#808080"))
我得到这个数字
现在,我想向其中一个构面添加一个geom_line .基本上,我只想在主要面板中有一条虚线(说x = 10,000).我该怎么办?
Now I want to add one geom_line to one of the facets. Basically, I wanted to have a dotted line (Say x=10,000) in only the major panel. How can I do this?
推荐答案
我没有您的数据,所以我做了一些弥补:
I don't have your data, so I made some up:
df <- data.frame(x=rnorm(100),y=rnorm(100),z=rep(letters[1:4],each=25))
ggplot(df,aes(x,y)) +
geom_point() +
theme_bw() +
facet_wrap(~z)
要在x = 1
处添加垂直线,我们可以将geom_vline()
与具有相同构面变量(在我的情况下为z='b'
,但您将为levels='major'
)的数据框一起使用:
To add a vertical line at x = 1
we can use geom_vline()
with a dataframe that has the same faceting variable (in my case z='b'
, but yours will be levels='major'
):
ggplot(df,aes(x,y)) +
geom_point() +
theme_bw() +
facet_wrap(~z) +
geom_vline(data = data.frame(xint=1,z="b"), aes(xintercept = xint), linetype = "dotted")
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