Why guides changes the order of the legend

[melgoussi]

I am wondering why guides change the order inside legend (ie color then shape)?

library(ggplot2)

basic <- ggplot(mtcars, aes(wt, mpg, colour = factor(cyl), shape = factor(vs) )) +
       geom_point()
basic
basic + labs(color = "color")
basic + guides(color = guide_legend(title = "color"), shape = guide_legend(title = "shape"))

[scottyd22]

Hello @melgoussi! I'm not sure why the order changes, but you can specify the order of multiple legends using the order argument within guide_legend().

basic + guides(color = guide_legend(title = "color"), 
               shape = guide_legend(title = "shape"))

basic + guides(color = guide_legend(title = "color", order = 2), 
               shape = guide_legend(title = "shape", order = 1))

Created on 2023-06-13 with reprex v2.0.2