yes, I am using ESS. ess-remote allows me to evaluate R-code from the local emacs-session on a remote machine connected to via ssh.
there are two problems: 1) the remote machine cannot write to org-babel-temp-file because the tmp-directory exists on the local machine. here we could add if(!file.exists(dirname(transfer.file))){dir.create(dirname(transfer.file))} in the middle of the variable org-babel-R-write-object-command this would achieve that the file is at least generated on the remote host. 2) however, still the transfer file does not exist on the local machine. there are several possiblities: a) tell org-babel-comint-eval-invisibly-and-wait-for-file that the file is remote and then test if (concat "/" username "@" host ":" file) exists instead of file. b) use tramp to transfer the file from the remote to the local machine. the function ssh does define ssh-host and ssh-username, however, calling ess-remote removes these variables again. c) tell org-babel-comint-eval-invisibly-and-wait-for-file not to wait for file if it is remote my conclusion: it would be nice to have this functionality, but perhaps it is not worth the efforts and it would be sufficient to avoid the endless loop when waiting for a file which never will generated. cheers thomas Eric Schulte <schulte.e...@gmail.com> writes: > Bastien <b...@gnu.org> writes: > >> Hi Thomas, >> thanks for the follow-up. >> Thomas Alexander Gerds <t...@biostat.ku.dk> writes: >> >>> I think that I can describe the problem a bit better now. It is not >>> related to the silent option but occurs whenever ":results value". >>> Emacs freezes due to the following line in >>> org-babel-comint-eval-invisibly-and-wait-for-file >>> (while (not (file-exists-p file)) (sit-for (or period 0.25))) >>> it seems that R cannot transfer the file and hence this is an >>> endless loop. >> I'm not knowledgeable enough in this area to provide a fix, maybe >> someone else will. >> > > Could this be a problem with whatever tool (I'm assuming ESS) you are > using to maintain the R session and generate the R file? > > Perhaps babel needs to modify the R code used to create the file (held > in the `org-babel-R-write-object-command' variable). Could you take a > shot at providing another version of this variable? I don't really > use R myself. > > Thanks, -- Thomas A. Gerds -- Assoc. Prof. Department of Biostatistics University of Copenhagen, Ă˜ster Farimagsgade 5, 1014 Copenhagen, Denmark Office: CSS-15.2.07 (Gamle Kommunehospital) tel: 35327914 (sec: 35327901)