On Thu, Aug 23, 2012 at 11:43 AM, Eric Schulte <eric.schu...@gmx.com> wrote: > John Hendy <jw.he...@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.
Trying this, but am hung up on directing to STDOUT. I tried just using: ,--- | print(paste("[../plots/",filename,"]",sep="")) `--- but just ended up with a bunch of strings in the pdf output. In googling around I found this on SO: - http://stackoverflow.com/questions/4112896/how-can-i-redirect-r-warning-messages-to-stdout So I tried: ,--- | sink(stdout(),print(paste("[../plots/",filename,"]",sep=""))) `--- But nothing gets printed into pdf at all. --- Actually, I revisited the above plaint print() statement to see what's going on and the #+results block contains files like so: ,--- | [1] "[../plots/filename.pdf]" `--- How do I strip the [1] and the quotes? 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