On Aug 21, 2014 7:40 AM, "Ivan Calandra" <ivan.calandra at univ-fcomte.fr
<mailto:ivan.calandra at univ-fcomte.fr>> wrote:
Dear useRs,
I'm looking for something like require() but which will work on
I have a .R file with lots of functions and I'm writing a new
function (say, 'foo') that depends on the functions from this file.
Until now, I have always source()d the .R file before running 'foo'.
But I would like to include some code in 'foo' to source() the file
only if it hasn't been done yet, and do nothing if the file has
already been source()d in the session.
R.utils::sourceTo(file, modifiedOnly=TRUE)
should do it. It will always source the file once. Also, contrary to
source() it default is to use local=TRUE.
Henrik
So, the same behavior as require() with packages, but with a .R file.
Does it make sense? I could provide an example if you think it would
Thank you in advance,
Ivan
--
Ivan Calandra
University of Franche-Comt?
Laboratoire Chrono-Environnement
Bureau ATER -107L
16, Route de Gray
25030 Besan?on Cedex, France
ivan.calandra at univ-fcomte.fr <mailto:ivan.calandra at univ-fcomte.fr>
+33 (0) 381 66 20 60
http://chrono-environnement.univ-fcomte.fr/spip.php?article1830