Re: [R] overlay two histograms ggplot

2017-12-14 Thread Thierry Onkelinx
Dear Elahe,

Something like

joint <- rbind(
  data.frame(x = gg$Az, veg = gg$veg, type = "Alz"),
  data.frame(x = tt$Cont, veg = gg$veg, type = "Cont")
)
ggplot(joint, aes(x = x, fill = veg, colour = type)) + geom_plot(alpha = 0.2)

Best regards,

ir. Thierry Onkelinx
Statisticus / Statistician

Vlaamse Overheid / Government of Flanders
INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE
AND FOREST
Team Biometrie & Kwaliteitszorg / Team Biometrics & Quality Assurance
thierry.onkel...@inbo.be
Kliniekstraat 25, B-1070 Brussel
www.inbo.be

///
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2017-12-13 13:14 GMT+01:00 Elahe chalabi via R-help :
> Hi all,
>
> How can I overlay these two histograms?
>
> ggplot(gg, aes(gg$Alz, fill = gg$veg)) + geom_histogram(alpha = 0.2)
> ggplot(tt, aes(tt$Cont, fill = tt$veg)) + geom_histogram(alpha = 0.2)
>
> thanks for any help!
> Elahe
>
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

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[R] overlay two histograms ggplot

2017-12-13 Thread Elahe chalabi via R-help
Hi all,

How can I overlay these two histograms? 

ggplot(gg, aes(gg$Alz, fill = gg$veg)) + geom_histogram(alpha = 0.2)
ggplot(tt, aes(tt$Cont, fill = tt$veg)) + geom_histogram(alpha = 0.2)

thanks for any help!
Elahe

__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.