删除图例 ggplot 2.2 [英] Remove legend ggplot 2.2

问题描述

我试图保留一层(平滑)的图例并删除另一层(点)的图例.我尝试使用 guides(colour = FALSE) 和 geom_point(aes(color = vs), show.legend = FALSE) 关闭图例.

I'm trying to keep the legend of one layer (smooth) and remove the legend of the other (point). I have tried shutting off the legends with guides(colour = FALSE) and geom_point(aes(color = vs), show.legend = FALSE).

编辑:由于这个问题及其答案很受欢迎，因此似乎有一个可重现的示例:

Edit: As this question and its answers are popular, a reproducible example seems in order:

library(ggplot2)
ggplot(data = mtcars, aes(x = mpg, y = disp, group = gear)) +
geom_point(aes(color = vs)) +
geom_point(aes(shape = factor(cyl))) +
geom_line(aes(linetype = factor(gear))) +
geom_smooth(aes(fill = factor(gear), color = gear)) + 
theme_bw() 

推荐答案

from r 食谱，其中 bp 是您的 ggplot:

from r cookbook, where bp is your ggplot:

删除特定美学(填充)的图例:

Remove legend for a particular aesthetic (fill):

bp + guides(fill="none")

也可以在指定比例时进行:

It can also be done when specifying the scale:

bp + scale_fill_discrete(guide="none")

这将删除所有图例:

bp + theme(legend.position="none")

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