Message-ID: <7C2E5F9A-8DF5-4719-A9C9-9298E6366229@dcn.davis.ca.us>
Date: 2020-06-29T23:07:50Z
From: Jeff Newmiller
Subject: [R-pkg-devel] data and load version 3
In-Reply-To: <4f061f16-5371-651f-07f1-aac450a70bb7@umu.se>
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.