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
[R-pkg-devel] data and load version 3
8 messages · Göran Broström, Uwe Ligges, Jeff Newmiller +2 more
On 29.06.2020 22:55, G?ran Brostr?m 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.
You may use version 3 for all, but you can also have a mix and only use vesion 3 for the new files. Best, Uwe Ligges
Thanks, G?ran
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Your choice. Do you want to support people using older versions of R, or not?
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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Sent from my phone. Please excuse my brevity.
On Mon, 29 Jun 2020 22:55:02 +0200
G?ran Brostr?m <goran.brostrom at umu.se> wrote:
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.
One of the steps performed by default during R CMD build is tools::resaveRdaFiles(), which passes NULL as version= argument to save(). Around R (not sure about this) 3.6.0 version=NULL was changed to mean version=3, so if you want to preserve compatibility with R < 3.5.0, you may need to run tools::resaveRdaFiles(..., version = 2) before running R CMD build --no-resave-data.
Best regards, Ivan
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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On Tue, 30 Jun 2020 11:48:29 +0200
G?ran Brostr?m <goran.brostrom at umu.se> wrote:
No point at all with version 3 in packages?
Format version 3 [1] introduces support for ALTREP objects [2]. Examples of where ALTREP might be useful include really long integer vectors, like 1:1e10.
On 6/30/20 11:48 AM, G?ran Brostr?m wrote:
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 ...
Format 3 supports efficient serialization of ALTREP objects, that is why it was introduced. It also saves the session native encoding and converts string on de-serialization when running in different native encoding. Documented also in R 3.5 NEWS, in R Internals. Tomas
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
______________________________________________ R-package-devel at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
______________________________________________ R-package-devel at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
On 2020-06-30 11:58, Ivan Krylov wrote:
On Tue, 30 Jun 2020 11:48:29 +0200 G?ran Brostr?m <goran.brostrom at umu.se> wrote:
No point at all with version 3 in packages?
Format version 3 [1] introduces support for ALTREP objects [2]. Examples of where ALTREP might be useful include really long integer vectors, like 1:1e10.
Thanks, no need for that in the actual data files, so I'll convert them to version 2. G?ran