Hi Jorge,

I tried but still it does not work.  Thank you for your time.




________________________________
From: Jorge Ivan Velez <jorgeivanvelez@gmail.com>

Cc: r-help@r-project.org
Sent: Thu, November 25, 2010 4:46:37 PM
Subject: Re: [R] overlap cdf plots and add colors and etc

Hi Roslina, 


Try

par(mar=c(4,4,2,1.2),oma=c(0,0,0,0),xaxs="i", yaxs="i")
plot(ecdf(rnorm(100)))
plot(ecdf(rnorm(100)), add = TRUE, col = 2)

HTH,
Jorge


On Thu, Nov 25, 2010 at 12:18 AM, Roslina Zakaria <> wrote:

Hi r-users,
>
>I would like to overlap 2 ecdf plots. 
>
>I tried this below and it gives me two plots of ecdf but just both just in
>black.
>
>par(mar=c(4,4,2,1.2),oma=c(0,0,0,0),xaxs="i", yaxs="i")
>plot(ecdf(datobs))
>lines(ecdf(gam_sum_gen))
>
>Then I try to add colors etc and also the legend but fail.
>
>par(mar=c(4,4,2,1.2),oma=c(0,0,0,0),xaxs="i", yaxs="i")
>plot(ecdf(datobs),main ="CDF of the sum for winter
>season-Hume",cex.axis=1.2,xlab="Rainfall (mm)", pch =
>pch,verticals=TRUE,col=c("black","red"), lty=c(1,1),ylab="Cumulative
>probability", xlim=c(0,800),lwd=1)
>lines(ecdf(gam_sum_gen))
>legend("topright", legend = c("observed","fitted"),
>       col = c("black","red"), pch=c(NA,NA), lty = c(1, 1),
>       lwd=c(3,3),bty="n", pt.cex=2)
>box()
>
>I'm not sure why it doesn't show up at all.
>
>Thank you for any help given.
>
>
>
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>
>
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