I have just started the du Bois challenge as part of #tidytuesday, and am on challenge 1: Comparative Increase of White and Colored Population in Georgia
The original graph has the "WHITE" symbol with 4 dashes enter image description here, but when I replicate the plot, the legend only has 1 and a bit of the second dash.
How do I repeat the symbol in the legend to get 4 dashes? I don't need to increase the size, just the repetition
Try setting legend.key.width in theme:
library(ggplot2)
ggplot(df1, aes(x, y, linetype = f)) +
geom_line() +
scale_linetype_manual(values = c("solid", "dashed")) +
theme(legend.key.width = unit(1.5, "strwidth", "- - - - "))
Test data
set.seed(2021)
df1 <- data.frame(
x = c(1:10, 1:10),
y = c(cumsum(rnorm(10)), cumsum(rnorm(10))),
f = rep(c("A", "B"), each = 10)
)
Similar to the approach by @RuiBarradas but making use of guide_legend to set the keywidth you could achieve your desired result like so:
library(ggplot2)
ggplot(economics, aes(date)) +
geom_line(aes(y = psavert, linetype = "psavert")) +
geom_line(aes(y = uempmed, linetype = "uempmed")) +
scale_linetype_manual(values = c(psavert = 1, uempmed = 5)) +
guides(linetype = guide_legend(keywidth = unit(50, "pt"))) +
theme(legend.position = "bottom")
