[R-pkg-devel] Warning about "serialize/load".
I think the major change was saving of alt-rep objects efficiently. Example save(1:1e8, file=...) is very efficient. I'm not sure if that is all that changed it, but I couldn't find documentation on the differences. For maximum compatibility in a package, personally I would use version 2.
On Sun, Jul 14, 2019 at 4:52 PM Rolf Turner <r.turner at auckland.ac.nz> wrote:
In a package (say "clyde") that I am building I save a number of datasets in clyde/data via something like: save(melvin,file="~/<whatever>/clyde/data/melvin.rda") When I build "clyde" I now get warnings like unto:
WARNING: Added dependency on R >= 3.5.0 because serialized objects in serialize/load version 3 cannot be read in older versions of R. File(s) containing such objects: 'clyde/data/melvin.rda'
If I put the argument "version=2" into my save() call, the warnings go away. What are the implications of this? What are the consequences/what is the downside of setting version=2? What are the consequences/what is the downside of adding the dependency on R >= 3.5.0 into my DESCRIPTION file? Who gets shafted by each of these two possibilities? Which is recommended? Grateful for any pearls of wisdom. cheers, Rolf Turner -- Honorary Research Fellow Department of Statistics University of Auckland Phone: +64-9-373-7599 ext. 88276
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