I am trying to combine multiple partial legends (i.e. for two different features of one plot) legends into one box. My real-life data is a plot made with geom_sf() with fill colors for polygons and a specific border highlighted made with geom_sf()with a line. Since the line is only one feature, it makes no sense to do a separate legend.
REPREX
data(iris)
ggplot(iris)+theme_classic()+
geom_point(aes(x=Petal.Length, y=Sepal.Length, color=Species, size=Sepal.Width))+
theme(legend.position=c(0.1,0.75),legend.background=element_rect(fill="white", color="black"), legend.spacing.y=unit(0,"cm"))
### Why doesn't ggplot draw a rectangle around the entire legend?
I managed to reduce the legend spacing, which already makes the plot cleaner, but …
How can I forego the two separate legend boxes altogether and combine them in one box so that my plot looks cleaner?
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