[R] How to add legend to 2 different data frame overplot?

[Jeff Newmiller]

Remove show_guide = FALSE?
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Sent from my phone. Please excuse my brevity.

On October 30, 2015 9:10:31 PM PDT, C W <tmrsg11 at gmail.com> wrote:
>Hi,
>
>I am trying to do add a legend to an overplot, something like this:
>
>ggplot() +
>    geom_density(data = df1, aes(x = x), fill = "green", show_guide =
>FALSE) +
>geom_area(data = df2, aes(x = x), fill = "yellow", show_guide = FALSE)
>+
>    scale_color_manual(values = c("green", "yellow"), labels = c('df1',
>'df2'))
>
>But the legend doesn't actually show up when I plot it.  How should I
>fix
>this?
>
>	[[alternative HTML version deleted]]
>
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