R plot legend with transparent background

Question

How to use legend R with transparent background when using plot() function?

+7

r plot legend alpha-transparency

Qbik Apr 29 '16 at 13:20

source share

1 answer

Shicheng guo · Accepted Answer · 2016-08-16T21:05:58+0000

Usage: bg = "transparent" in

 legend()

For example:

 legend("right",bg="transparent",col=c(as.numeric(unique(df$group2))),cex=0.5)