Hi Roger, There's a typo on your source block header, it should be "output graphics", this would probably produce the output you're getting now. Thanks, Pedro Le dim. 15 août 2021 à 10:17, Roger Mason a écrit : > Hello, > > I want graphics output from R: > > #+begin_src R :results output grahics file :file coa_vs_a.pdf :exports > results > library(tidyverse) > library(RPostgreSQL) > drv <- dbDriver("PostgreSQL") > con <- dbConnect(drv, user="rmason",dbname="test") > rs <- dbSendQuery(con,"with CTE as (select > split_part(split_part(lattice_out, E'\n', 13), ' ', 18) as c, > split_part(split_part(lattice_out, E'\n', 11), ' ', 11) as a > from results where timestamp like '20210814-071%' order by a) > select cast(a as double precision), cast(c as double precision)/ cast(a > as float) as coa from CTE;") > df <- fetch(rs) > theplot <- ggplot(df,aes(x=a,y=coa)) + geom_point() > theplot > #+end_src > > What I expect is a file 'coa_vs_a.pdf' on my filesystem & a link to it > in the org buffer. What I get is a file 'Rplots.pdf' and an empty file > 'coa_vs_a.pdf' with a link to the latter in the org buffer. > > I've searched this topic and I _think_ the invocation above, one of many > I've tried, should work. > > GNU Emacs 27.2 (build 1, amd64-portbld-freebsd11.4, X toolkit, cairo > version 1.16.0, Xaw3d scroll bars) > > Org mode version 9.2.3 (release_9.2.3-390-gfb5091 @ > /home/rmason/.emacs.d/org-git/lisp/) > > Thanks for your help. > > Roger > >