On 15/07/19 12:06 PM, Travers Ching wrote:
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.
That's my gut reaction as well. Thanks for the advice.
cheers,
Rolf
On Sun, Jul 14, 2019 at 4:52 PM Rolf Turner <r.tur...@auckland.ac.nz
<mailto:r.tur...@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
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