On 2012-06-15 16:14, Debs Majumdar wrote:
I thought that might be the case and did a couple of dev.off() even though I started a 
new R session. Each time I try to use the plot, it comes up with "pdf 2".



I think that the code for plot.lordif may have a bug; it contains this
line:

 if (Sys.info()["sysname"]=="Windows") dev.new(record=T) else par(ask=T)

which opens a new device on Windows. Just comment out that line and
save the function as myplot.lordif and (may not be necessary but
can't hurt) execute

  environment(myplot.lordif) <- environment(lordif)

and you should be okay using myplot.lordif() in place of plot.lordif().
Worked for me with the Anxiety age.dif example.

(I didn't read the code of plot.lordif carefully since, apparently,
the authors were unable to locate a keyboard with a spacebar or
tab-key.)

Peter Ehlers



----- Original Message -----
From: R. Michael Weylandt<michael.weyla...@gmail.com>
To: Debs Majumdar<debs_st...@yahoo.com>
Cc: "r-help@r-project.org"<r-help@r-project.org>
Sent: Friday, June 15, 2012 4:10 PM
Subject: Re: [R] Save multiple plots in a single pdf file when the plots are 
generated by a single plot command

It looks like you have one too many pdf objects open. The "pdf 2" that
is printed indicates control was returned to another pdf device. Keep
doing dev.off() until you get the message "null device 1" and then try
it once again.

Best,
Michael

On Fri, Jun 15, 2012 at 6:06 PM, Debs Majumdar<debs_st...@yahoo.com>  wrote:
I am using R 2.15.0 on Windows 7.

It shows the plots on the screen. I can page-up and page-down to look at the 
different plots. It's when I want to save the plot, I get a blank pdf file (0 
kb).

#############
pdf("education.pdf")
plot(ed_dif, labels = c("White", "African American"))
dev.off()
pdf
   2

############




----- Original Message -----
From: R. Michael Weylandt<michael.weyla...@gmail.com>
To: Debs Majumdar<debs_st...@yahoo.com>
Cc: "r-help@r-project.org"<r-help@r-project.org>
Sent: Friday, June 15, 2012 3:48 PM
Subject: Re: [R] Save multiple plots in a single pdf file when the plots are 
generated by a single plot command

On Fri, Jun 15, 2012 at 4:39 PM, Debs Majumdar<debs_st...@yahoo.com>  wrote:
Hi,

I am trying to save multiple plots in a single pdf file when  the plots are generated by 
a single plot command. I am using the "lordif" package which generates multiple 
plots with one command.

pdf("education.pdf")
plot.lordif(ed_dif, labels = c("White", "African American"))
dev.off()

And this is not working at all. Thanks for your help.

What do you mean by this? Is it the file not being created? Or its
blank? Or you get the wrong output? Does it work to print to a screen
device but not a pdf? Etc.

Running the example in ?lordif, this works for me:

pdf("test.pdf")
plot(age.DIF)
dev.off()

What OS are you on and what version of R?

In short, happy to help, but we need (much) more information.

Michael


Debs

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and provide commented, minimal, self-contained, reproducible code.

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