Thanks to you both for the information - that's exactly the level of detail I was looking for. I ask because I want to play around with a function to automatically cache expensive operations to disk, in a way that can be lazy loaded on the next run.
Hadley On Mon, Feb 7, 2011 at 4:06 PM, Henrik Bengtsson <h...@biostat.ucsf.edu> wrote: > Also, if it it adds any value to what you are looking for, the output > of serialize() also has header information, cf. R-devel thread 'Small > inconsistency in serialize() between R versions and implications on > digest()' started March 7, 2007: > > http://www.mail-archive.com/r-devel@r-project.org/msg07931.html > > It caused us some headaches when trying to generate identical output > of the same input using different versions of R. It was solved in > that thread. See code for digest::digest() on how to skip/ignore that > header. > > /Henrik > > > On Mon, Feb 7, 2011 at 1:51 PM, Prof Brian Ripley <rip...@stats.ox.ac.uk> > wrote: >> On Mon, 7 Feb 2011, Hadley Wickham wrote: >> >>> Hi all, >>> >>> Is there any relationship between save and serialize? Do they use the >>> same algorithm? >> >> See the R-internals manual: there is more info in the R-devel version, not >> least because saveRDS() is added to the mix. >> >> But basically serialize() and saveRDS() use the same format, and save() >> writes a header and then serializes a pairlist of the objects given. >> >> 'The same algorithm' is somewhat misleading here: strictly no, as they >> manage to use four entry points to the code base. >> >>> >>> Hadley >>> >>> -- >>> Assistant Professor / Dobelman Family Junior Chair >>> Department of Statistics / Rice University >>> http://had.co.nz/ >>> >>> ______________________________________________ >>> R-devel@r-project.org mailing list >>> https://stat.ethz.ch/mailman/listinfo/r-devel >>> >> >> -- >> Brian D. Ripley, rip...@stats.ox.ac.uk >> Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ >> University of Oxford, Tel: +44 1865 272861 (self) >> 1 South Parks Road, +44 1865 272866 (PA) >> Oxford OX1 3TG, UK Fax: +44 1865 272595 >> >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel >> > > -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel