Try this:
ggplot(mydf,aes(x)) +
geom_line(aes(y = y1, colour = "y1")) +
geom_line(aes(y = y2, colour = "y2")) +
scale_color_manual(values = c(y1 = "green4", y2 = "blue2"))
Note that you don't need to use `mydf` and names in the manual scale
should match the values in the aes() calls.
Alsoi
Hi,
Given a data frame, I'm trying to graph multiple lines on one graph, each
line being a different color and each colored line corresponding to a
specific name in the legend. Here is a very basic data sample to work with:
x <- seq(0,40,10)
y1 <- sample(1:50,5)
y2 <- sample(1:50,5)
mydf <-
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