Yes, it works. Thanks, Sebastien. Shiyuan
On Mon, Aug 25, 2014 at 12:51 AM, Sebastien Vauban <sva-n...@mygooglest.com> wrote: > Shiyuan wrote: > > I am looking at a simpler example, the pie-chart example as in this link: > > > http://orgmode.org/worg/org-contrib/babel/intro.html#literate-programming > > > > This example(src code attached in the end) first generates a table by a > > shell command and then run a R one-liner which uses the table. However, > > when the R code is evaluated, I got an error about the object dirs not > > found. This is what I got in the buffer running R: > > ------------------------------- > > options(STERM='iESS', str.dendrogram.last="'", editor='emacsclient', > > show.error.locations=TRUE) > >> > > Error in pie(dirs[, 1], labels = dirs[, 2]) (from > > test-org-babe-meta-programming.org@24170fIx#1) : object 'dirs' not found > > ----------------------------------------------- > > > > It looks like that the conversion is wrong. When I run > > `org-babel-expand-src-block` > > on the R source code, I don't see the R object dirs is expanded to > > anything. I don't understand how the conversion works, and how Babel > passes > > the table to R. Any explanation is appreciated. Which function/file > should > > I look at? Are there working examples for passing a table to R? Thanks. > > > > #+name: directories > > #+begin_src shell :results replace > > cd ~ && du -sc * |grep -v total > > #+end_src > > > > #+RESULTS: directories > > | 8 | #*message*-20140319-231047# | > > | 1168376 | Documents | > > | 9952288 | Downloads | > > | 8 | xmodmap2~ | > > > > #+name: directory-pie-chart(dirs = directories) > > #+begin_src R :session R-pie-example :file ~/tmp/dirs.png > > pie(dirs[,1], labels = dirs[,2]) > > #+end_src > > AFAICT, the arguments to code blocks may not be defined and set in the > `name' line anymore: this must be done on the `begin_src' line. > > So, the following should work: > > #+name: directory-pie-chart > #+begin_src R :var dirs=directories :session R-pie-example :file > ~/tmp/dirs.png > pie(dirs[,1], labels = dirs[,2]) > #+end_src > > Best regards, > Seb > > -- > Sebastien Vauban > > >
