RE: [R] postscript() and levelplot() in a for loop

[Thomas Lumley]

On Wed, 26 Jan 2005, Wang, Yan wrote:
Dear Thomas,
It is very interesting to read FAQ 7.22. I don't see any example of
lattice/trellis graphics linked with print() statement. How should I specify
print()? Here are the actual codes I used to create the .ps file:
x=y=myaa
grid=expand.grid(x=x,y=y)
postscript(paste(./Graphs/",file[k],".ps",sep=""))
grid$z=as.vector(mymatrix)
print(
levelplot(z~x*y,grid,at=seq(0,1,by=0.01),scales=list(cex=2),
         colorkey=list(labels=list(cex=2,at=seq(0,1,by=0.2))),
         main="mytitle")
)
        -thomas
dev.off()
Thank you for any help.
Yan
-----Original Message-----
From: Thomas Lumley [mailto:[EMAIL PROTECTED]
Sent: Wednesday, January 26, 2005 11:01 AM
To: Wang, Yan
Cc: R-help@stat.math.ethz.ch
Subject: Re: [R] postscript() and levelplot() in a for loop
On Wed, 26 Jan 2005, Wang, Yan wrote:
Hi,

I like to produce a series of levelplot graphs in postscript file, so I
put
the trunk of codes including postscript() and levelplot() in a for loop.
The
codes work fine outside the loop, but only produce empty .ps file when
being
put within the loop. Is it a problem associated with postscript() or
levelplot()? How to get around the problem? Many thanks!
It's hard to be sure without seeing any code, but it sounds like you
should look at
FAQ 7.22 Why do lattice/trellis graphics not work?
        -thomas
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Thomas Lumley                       Assoc. Professor, Biostatistics
[EMAIL PROTECTED]       University of Washington, Seattle
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