ggplot with custom legend.text

Question

I'm using ggplot to generate some graphics but get the following error:

Error in FUN(X[[1L]], ...) : could not find function "label.theme"

when trying to specify the label names.

This basic graph gets generated correctly:

p <- ggplot(as.data.frame(list(a=1:5, b=1:5,c=factor(c(1,1,2,2,2)))), aes(x=a,y=b, color=c)) + geom_path(size=1)
p

But this graph produces the above error.

p + opts(legend.text=letters[1:2])

Am I not setting the legend text correctly?

The legend.text argument in opts doesn't set the legend text values it alters the legend text formatting. So you'd pass it something like theme_text(size = 3,colour = "blue") to change the size and colour. — joran
– joran, Commented Jul 13, 2012 at 20:44

bdemarest · Accepted Answer · 2012-07-13 20:00:31Z

3

This accomplishes what you want I think:

p + scale_colour_discrete(labels=letters[1:2])

answered Jul 13, 2012 at 20:00

bdemarest

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