如何更改ggplot2中图例文本的大小? [英] How to change the size of legend text in ggplot2?
本文介绍了如何更改ggplot2中图例文本的大小?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我使用下面的数据和代码得到了这个图
I got this plot using the data and code below
我希望能够更改图例文本的大小(A,B,M1,M3).我尝试使用
I want to be able to change the size of legend text (A, B, M1, ,M3). I tried using
legend.text=element_text(size=0.5)
但是它没有改变.有什么建议可以减少legend.text的大小吗?
but it didn't change. Any suggestion how to reduce the size of legend.text?
代码
ggplot(df.trial1, aes(x=Date, y= A, color="A"))+
geom_line(linetype=3, size=0.2)+
geom_point(aes(x=Date, y=B, color="B"), shape = 16, size =1, alpha=0.5)+
geom_point(aes(x=Date, y=Value, color=Method), size =1, alpha=0.5)+
scale_colour_manual(name=" ", values=cols,
labels=c("A", "B", 'M1', "M2", "M3"))+
scale_linetype_manual(values = c("dashed")) +
scale_x_date(breaks = date_breaks("1 month"), labels = date_format("%d-%b-%y"))+
guides(color=guide_legend(override.aes=list(shape=c(NA,16, 16, 16, 16),
linetype=c(3,0, 0, 0, 0)),
direction = "vertical", title.position = "top",
label.position="right", label.hjust = 0, label.vjust = 0.5,
label.theme = element_text(angle = 0)))+
labs(x=expression(Date), y=expression(Value))+
theme(legend.text=element_text(size=0.5))
推荐答案
从您的指南中删除 label.theme = element_text(angle = 0)
似乎可以解决此问题.
Remove label.theme = element_text(angle = 0)
from your guides seems to fix this.
guides(color=guide_legend(override.aes=list(shape=c(NA,16, 16, 16, 16),
linetype=c(3,0, 0, 0, 0)),
direction = "vertical", title.position = "top",
label.position="right", label.hjust = 0, label.vjust = 0.5
#,label.theme = element_text(angle = 0)
)) +
theme(legend.text=element_text(size=10))
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