On 05/09/2010 07:10 AM, Ravi Ramaswamy wrote:
Hi - Wondering if someone could help me with a plotting problem. I looked
through the postings for this error message but the explanations are hard to
follow.
Basically I have matrix of 80 rows and 101 columns. I would like to
generated a line graph that has 80 plots, one for each row, with the first
number in that row equal to y (response) and the remaining numbers equal to
the Xs.
Response numbers are between 0 and 100 (percentages) and Xs are all between
1 and 3. Could someone tell me how to do it, and avoid the error message
below?
Hi Ravi,
You can do it like this, but the example produces an awful mess.
rrdf<-data.frame(y=sample(0:100,80),
matrix(runif(8000)*1.99+1,nrow=80))
par(mar=c(5,4,4,4))
plot(0,xlim=c(1,101),ylim=c(0,100),type="n",xaxt="n",yaxt="n",
xlab="Y and X",ylab="Y value",main="Test plot")
axis(1,at=c(1,seq(11,101,by=10)),labels=c("Y",paste("X",seq(10,100,by=10),sep="")))
axis(2,col="red")
axis(4,at=c(0,50,100),labels=1:3,col="green")
mtext("X value",side=4,line=2,col="green")
for(dfrow in 1:80) {
points(1,rrdf[dfrow,1],col="red")
lines(2:101,(rrdf[dfrow,2:101]-1)*50,col="green")
}
Jim
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