Set legend width to be 100% plot width for any geom-CodePudding

Similar to

I've tried the solutions from the links, which are to use units() and patchwork respectively, but those doesn't work with geom_col and return the next distorted legend

CodePudding user response：

This one is from one of the mentioned so pages

CodePudding user response：

The legend.margin argument allows you to edit the size of the legend using the margin function

library(gapminder)

ggplot(gapminder |> 
         filter(continent %in% c("Americas", "Europe"), country %in% c("Chile", "Spain")))  
  geom_col(aes(x = country, y = lifeExp, fill = continent), position = "dodge")  
  theme(legend.position = "bottom",
        legend.background = element_rect(fill = "gray"),
        legend.margin = margin(0,6,0,6, "cm"))