Re: Including multiple plots resulting from a loop of R code in LaTeX

[John Hendy <jw.hendy@gmail.com>]

On Mon, Aug 27, 2012 at 3:50 PM, Eric Schulte <eric.schulte@gmx.com> wrote:
> John Hendy <jw.hendy@gmail.com> writes:
>
>>> Disregard again... adding multiple newlines with cat() doesn't work,
>>> but I had the idea to do:
>>>
>>> cat(paste("[[../plots/",filename,"]]",sep=""), sep="\n")
>>> cat("\n")
>>>
>>> Works great. I suppose I can use this to add #+attr_latex options as
>>> well as captions. Cool stuff.
>>
>> Getting a bit of odd behavior on LaTeX export. Here's the gist of my
>> block below. I've iterated through various model parameters and saved
>> the results to filenames based on those parameters. These are stored
>> in a vector =filenames=.
>>
>> #+begin_src R :session model :results output raw :exports results
>>
>> for(i in 1:nrow(filenames)) {
>>
>> # insert section header
>> cat(paste("*Param1 = ", as.character(params[i, 1]),
>>           "; Param2 = ", as.character(params[i, 2]),"*", sep=""))
>> cat("\n\n")
>> cat("#+begin_center")
>> cat("\n")
>>
>> read.csv(filename)
>>
>> for(j in 1:5) {
>>
>> ggplot code
>>
>> pdf(output-filename)
>> print(p)
>> dev.off()
>>
>> cat(paste("[[../plots/",output-filename,"]]",sep=""), sep="\n")
>> cat("\n")
>>
>> } # end plotting loop
>>
>> cat("#+end_center")
>> cat("\n\n")
>>
>> } # end filename cycling loop
>>
>> #+end_src
>>
>> I get results like so:
>>
>> #+RESULTS:
>> *Param1 = 4; Param2 = 0.025*
>>
>>
>> #+begin_center
>> [[../plots/filename1.pdf]]
>>
>> [[../plots/filename2.pdf]]
>>
>> [[../plots/filename3.pdf]]
>>
>> [[../plots/filename4.pdf]]
>>
>> [[../plots/filename5.pdf]]
>>
>> #+end_center
>>
>> There are six of these sections, however when I do C-c C-c on the
>> block and then C-c C-e p to export to LaTeX, I get duplicate sections
>> back to back. I have to delete the entire results section and only do
>> C-c C-e p with an empty results section to have the duplicate removed.
>>
>
> Try replacing ":results output raw" with ":results output org"
>
>>
>> Why might this be?
>>
>
> Because Babel is not able to remove the old results of "raw" output as
> the output has no obvious delimiters.  However "org" output should be
> wrapped in begin/end_org blocks allowing old output to be cleaned up.
>
> Best,
>

That works! Sigh... so much to learn...

John

>>
>>
>> John
>>
>>
>>>
>>> Thanks!
>>>
>>>>
>>>>
>>>> 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
>>
>
> --
> Eric Schulte
> http://cs.unm.edu/~eschulte