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From: John Hendy <jw.hendy@gmail.com>
To: Eric Schulte <eric.schulte@gmx.com>
Cc: emacs-orgmode <emacs-orgmode@gnu.org>
Subject: Re: Including multiple plots resulting from a loop of R code in LaTeX
Date: Sun, 26 Aug 2012 22:24:17 -0500	[thread overview]
Message-ID: <CA+M2ft_1pTyes4x1u7-YmJ2UR2TgwW83KJYXwuxhcwdw3F2h5A@mail.gmail.com> (raw)
In-Reply-To: <CA+M2ft9e4VKNsaHb9=aVxSWmOAaR3f2WFPUta3Rb1xGZQKTceQ@mail.gmail.com>

On Sun, Aug 26, 2012 at 10:15 PM, John Hendy <jw.hendy@gmail.com> wrote:
> On Thu, Aug 23, 2012 at 11:43 AM, Eric Schulte <eric.schulte@gmx.com> wrote:
>> John Hendy <jw.hendy@gmail.com> writes:
>>> I'm conducting some neural network analysis, and the results are
>>> highly dependent on the random seed set prior to creating the model. I
>>> loop through seeds 1-500, storing the predicted values in one data
>>> frame and a table of mean sum of squared errors in another table.
>>> Then, I use ggplot to create only the 10 or so plots with the lowest
>>> error. The loop is something like this:
>>> ----------
>>> for(i in 1:10) {
>>> filename <- paste("neuralnet-","-seed-",as.character(mse[i,1]),".pdf", sep="")
>>> pdf(filename, width=12, height=8)
>>> [ggplot code]
>>> dev.off()
>>> ----------
>>> What I want to know is how to include the resultant files in LaTeX
>>> export. Since my model runs and then sorts by error, I don't know
>>> which seeds produce the best files beforehand, so I'd have to look at
>>> the error table and manually insert the plot names by hand. Changing
>>> results means changing file names by hand again.
>>> Any suggestions for things like this where the output of a babel block
>>> is not a single file?
>> Have you tried using header arguments like the following.
>> :results output raw :exports results
>> and then printing the file names (including the Org-mode link syntax) to
>> STDOUT from within your R code block.
> Disregard the previous. I found that I should be using cat(paste(...))
> instead of print(), since that removes the [1] from each line.
> Unfortunately,
> ,---
> | cat(paste("[[../plots/",filename,"]]",sep=""), sep="\n\n")
> `---
> still gives me output in orgmode of filenames with no new lines in
> between so my plots are being printed 4-up on a page (2 wide, 2 tall)
> instead of only 1 wide and 2 tall. If I manually enter new lines in
> between the output file names, they behave as they should. How do I
> get org to accept the extra newlines I'm trying to add? Executing in
> the R session itself behaves as expected and does space the lines.

Disregard again... adding multiple newlines with cat() doesn't work,
but I had the idea to do:

cat(paste("[[../plots/",filename,"]]",sep=""), sep="\n")

Works great. I suppose I can use this to add #+attr_latex options as
well as captions. Cool stuff.


> Thanks,
> John
>> If I understand correctly that should result in the behavior you're
>> after.
>> Best,
>>> Thanks,
>>> John
>> --
>> Eric Schulte
>> http://cs.unm.edu/~eschulte

  reply	other threads:[~2012-08-27  3:24 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-22 17:41 Including multiple plots resulting from a loop of R code in LaTeX John Hendy
2012-08-23 16:43 ` Eric Schulte
2012-08-27  2:58   ` John Hendy
2012-08-27  3:15   ` John Hendy
2012-08-27  3:24     ` John Hendy [this message]
2012-08-27 20:16       ` John Hendy
2012-08-27 20:40         ` Nick Dokos
2012-08-27 21:40           ` John Hendy
2012-08-27 20:50         ` Eric Schulte
2012-08-27 21:37           ` John Hendy

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