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I have a ggplot, which also displays a legend:

ggplot(dt.m, aes(x=pct.on.OAC.cont,y=Number.of.Practices, fill=Age.Group)) +
    geom_bar(stat="identity",position=position_dodge())

When I add another line, I also get a second legend:

geom_smooth(aes(x=pct.on.OAC.cont,y=Number.of.Practices, colour=Age.Group), se=F, alpha=0.5)

How can I prevent the second legend from displaying ?

Robert Long
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1 Answers1

14

Use show_guide = FALSE in geom_smooth:

geom_smooth(aes(x=pct.on.OAC.cont,y=Number.of.Practices, colour=Age.Group),
            se=F, alpha=0.5, show_legend = FALSE)

This suppresses drawing a legend.

wake_wake
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Sven Hohenstein
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  • In the new ggplot2, the command is show.legend = FALSE. But everything else is the same. – bshor Mar 09 '16 at 20:50