在ggplot图例中重叠的形状和字符 [英] overlapping shape and character in ggplot legend

问题描述

当我用相同的颜色绘制点和文本时， a 和图例中的形状重叠。

When I plot points and text with the same colour, the a and the shape overlap in the legend.

我可以告诉ggplot不要在图例中绘制 a ？如何？

Can I tell ggplot not to draw the a in the legend? How?

M <- data.frame(t=letters[1:16],
            xx=runif(16),
            yy=runif(16),
            g=rep(c("A","B","C","D"),4))
str(M)

ggplot(M,aes(x=xx,y=yy,label=t,colour=g)) + 
       geom_point(shape=3) + 
       geom_text(vjust=0,hjust=0) + 
       scale_colour_discrete()

推荐答案

code> show_guide = F 为您的 geom_text ：

Just add show_guide = F for your geom_text:

ggplot(M,aes(x=xx,y=yy,label=t,colour=g)) + 
  geom_point(shape=3) + 
  geom_text(vjust=0,hjust=0, show_guide = F) +
  scale_colour_discrete()

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