Perhaps Davide wants to put two plots side by side, rather than superimposed. In this case the necessary commands are, par(mfrow=c(1,2)) # 1 row and 2 columns qqnorm(y1) qqline(y1) qqnorm(y2) qqline(y2) par(mfrow=c(1,1)) # switch back to 1 plot -Greg > -----Original Message----- > From: Achim Zeileis [mailto:zeileis at ci.tuwien.ac.at] > Sent: Tuesday, October 16, 2001 5:57 AM > To: d.tarfanelli at libero.it > Cc: r-help at stat.math.ethz.ch > Subject: Re: [R] help me > >
> "d.tarfanelli at libero.it" wrote:
> > > > Hy, > > I have dowloaded the R-version for Windows. > > I would want to plot different pictures on the same > device, but I am not > > able to do it (i.e I would like make 2 qqplot on the same > graphic). > > Can you help me? > > You can use points() like in the following example. > Z > > > y <- rt(200, df = 5) > y.q <- qqnorm(y, plot.it=FALSE) > z <- rnorm(200) > z.q <- qqnorm(z, plot.it=FALSE) > plot(y.q) > points(z.q, col=2) > > > > > > Thanks in advance > > Davide > > > > reply to: d.tarfanelli at libero.it > > > > > -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. > -.-.-.-.-.-.-.-.-.- > > r-help mailing list -- Read > http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html > > Send "info", "help", or "[un]subscribe" > > (in the "body", not the subject !) To: > r-help-request at stat.math.ethz.ch > > > _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. > _._._._._._._._._._ > -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. > -.-.-.-.-.-.-.-.-.- > r-help mailing list -- Read > http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html > Send "info", "help", or "[un]subscribe" > (in the "body", not the subject !) To: > r-help-request at stat.math.ethz.ch > _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. > _._._._._._._._._._ > LEGAL NOTICE Unless expressly stated otherwise, this message is confidential and may be privileged. It is intended for the addressee(s) only. Access to this E-mail by anyone else is unauthorized. If you are not an addressee, any disclosure or copying of the contents of this E-mail or any action taken (or not taken) in reliance on it is unauthorized and may be unlawful. If you are not an addressee, please inform the sender immediately. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._