[R-pkg-devel] data and load version 3
On 2020-06-30 01:07, Jeff Newmiller wrote:
Your choice. Do you want to support people using older versions of R, or not?
Is that all? No point at all with version 3 in packages? Why was it introduced? I have seen an argument for version 2: "... needed ... to support name spaces", but version 3 ... G?ran
On June 29, 2020 1:55:02 PM PDT, "G?ran Brostr?m" <goran.brostrom at umu.se> wrote:
I added two data sets (.rda) to my package eha, but when I build the new version I get: 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: ?eha/data/swedeaths.rda? ?eha/data/swepop.rda? In DESCRIPTION I have 'Depends: R (>= 3.0.0)' After googling for a while (found nothing relevant in 'WRE'), I understand that I have two options: (i) Change 'Depends' in DESCRIPTION as suggested, and (ii) using save with 'version = 2' for the new files. And, if I am recommended to choose (i), should I recreate the old data files with 'version = 3'? My guess is go for (i) and version = 3 for all data files, but I feel that I need advise. Thanks, G?ran
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