Thank you Henrik, that's exactly what I'm looking for!
Ivan
--
Ivan Calandra
University of Franche-Comté
Laboratoire Chrono-Environnement
Bureau ATER -107L
16, Route de Gray
25030 Besançon Cedex, France
ivan.calan...@univ-fcomte.fr
+33 (0) 381 66 20 60
http://chrono-environnement.univ-fcomte.fr/spip.php?article1830
Le 21/08/14 18:15, Henrik Bengtsson a écrit :
On Aug 21, 2014 7:40 AM, "Ivan Calandra" <ivan.calan...@univ-fcomte.fr
<mailto:ivan.calan...@univ-fcomte.fr>> wrote:
>
> Dear useRs,
>
> I'm looking for something like require() but which will work on
source()d files.
>
> 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
help.
>
> Thank you in advance,
> Ivan
>
> --
> Ivan Calandra
> University of Franche-Comté
> Laboratoire Chrono-Environnement
> Bureau ATER -107L
> 16, Route de Gray
> 25030 Besançon Cedex, France
> ivan.calan...@univ-fcomte.fr <mailto:ivan.calan...@univ-fcomte.fr>
> +33 (0) 381 66 20 60
> http://chrono-environnement.univ-fcomte.fr/spip.php?article1830
>
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> R-help@r-project.org <mailto:R-help@r-project.org> mailing list
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