Re: [R] plotting multiple figures on one page

From: Jim Lemon <>
Date: Thu, 17 Mar 2011 18:12:12 +1100

On 03/17/2011 07:46 AM, scarlet wrote:
> I am new to the R language. I am trying to plot multiple figures on one page
> through a loop, but the code just produce one graph on one page. Can someone
> show some light on what's wrong?
> Here is my code:
> library("quantreg")
> tcdata<-read.table("mydata.txt",header=TRUE)
> postscript("")
> basins<- paste(c("b1","b2","b3","b4","b5","b6"),sep="")
> par(mfrow = c(2,3),mar=c(0,4,0,2),oma=c(5,0,3,0))
> for (k in 1:6) {
> data0=subset(tcdata,basin==basins[k])
> attach(data0)
> model=rq(rain~year,tau=seq(0.1,0.9,0.1))
> plot(summary(model,alpha=0.05,se="iid"),parm=2,pch=19,cex=1.2,mar=c(5,5,5,5),
> ylab=" ",xlab=" ")
> }
Hi scarlet,
First, you don't really have to paste the values for "basin" together, the "c" is all you need. Trying this code:

tcdata<-data.frame(rain=sample(400:1500,360),   year=rep(1927:1986,each=6),basin=rep(1:6,60)) par(mfrow = c(2,3),mar=c(0,4,0,2),oma=c(5,0,3,0)) for (k in unique(tcdata$basin)) {

   cex=1.2,mar=c(5,5,5,5),ylab=" ",xlab=" ")

does exactly what you say, that is, ignores the division of the figure area into six parts. As ordinary plots work okay, I assume that there is something in the plot method for an rq model that overrides the call to par(mfrow...)

Jim mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Thu 17 Mar 2011 - 07:21:34 GMT

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