XQuartz

I am generating within a loop a large number of XQuartz images. I know that I can use the Save As command to save each one individually. This is very time consuming and tedious. Is it possible to save them  automatically with a R script command?

Thanks for any tip that one can offer.

Paul

Hi Paul,

Rather than use XQuartz, avoid "printing" the image and use the
pdf()/def.off() commands. Here's an example that I think answers your
question:

for(i in 1:10){
x <- i*1:10
y <- sqrt(x)
pdf(paste("File",i,".pdf",sep=""))
plot(x,y, main = paste("Test Case",i),type = 'l')
dev.off()
}

Note that the paste function gives you the file name within the pdf
function. Check out the ?pdf file to see how to change the width,
height, or file type.

If you are using ggplot2, ggsave can do similar things.

Does this help?

Richard

On Tue, Sep 24, 2013 at 12:01 PM, Paul Ossenbruggen <pjo at cisunix.unh.edu> wrote:

I am generating within a loop a large number of XQuartz images. I know that I can use the Save As command to save each one individually. This is very time consuming and tedious. Is it possible to save them  automatically with a R script command?

Thanks for any tip that one can offer.

Paul

On Sep 24, 2013, at 13:16, R Erickson <raerickson at gmail.com> wrote:

Hi Paul,

Rather than use XQuartz, avoid "printing" the image and use the
pdf()/def.off() commands. Here's an example that I think answers your
question:

for(i in 1:10){
x <- i*1:10
y <- sqrt(x)
pdf(paste("File",i,".pdf",sep=""))
plot(x,y, main = paste("Test Case",i),type = 'l')
dev.off()
}

Or, move pdf() before and dev.off() after the loop and make one big file with all the graphs on different pages.

M

Note that the paste function gives you the file name within the pdf
function. Check out the ?pdf file to see how to change the width,
height, or file type.

If you are using ggplot2, ggsave can do similar things.

Does this help?

Richard

On Tue, Sep 24, 2013 at 12:01 PM, Paul Ossenbruggen <pjo at cisunix.unh.edu> wrote:

I am generating within a loop a large number of XQuartz images. I know that I can use the Save As command to save each one individually. This is very time consuming and tedious. Is it possible to save them  automatically with a R script command?

Thanks for any tip that one can offer.

Paul

Thanks for sharing this! I always wondered what was the trick for
creating multistage PDFs from R.

On Tue, Sep 24, 2013 at 4:19 PM, R. Michael Weylandt
<michael.weylandt at gmail.com> <michael.weylandt at gmail.com> wrote:

On Sep 24, 2013, at 13:16, R Erickson <raerickson at gmail.com> wrote:

Hi Paul,

Rather than use XQuartz, avoid "printing" the image and use the
pdf()/def.off() commands. Here's an example that I think answers your
question:

for(i in 1:10){
x <- i*1:10
y <- sqrt(x)
pdf(paste("File",i,".pdf",sep=""))
plot(x,y, main = paste("Test Case",i),type = 'l')
dev.off()
}

Or, move pdf() before and dev.off() after the loop and make one big file with all the graphs on different pages.

M

Note that the paste function gives you the file name within the pdf
function. Check out the ?pdf file to see how to change the width,
height, or file type.

If you are using ggplot2, ggsave can do similar things.

Does this help?

Richard

On Tue, Sep 24, 2013 at 12:01 PM, Paul Ossenbruggen <pjo at cisunix.unh.edu> wrote:

I am generating within a loop a large number of XQuartz images. I know that I can use the Save As command to save each one individually. This is very time consuming and tedious. Is it possible to save them  automatically with a R script command?

Thanks for any tip that one can offer.

Paul