[R-pkg-devel] data files not found in package checks

[Ulrike Grömping]

P.S.: Would it perhaps be a good idea to recommend (in "Writing R 
packages" or other package creation instructions) that users include 
utils::globalVariables() for the data directory entries in the package R 
code within the data documentation R files?

Am 27.06.2025 um 10:50 schrieb Ulrike Grömping:
> Thanks, Georgi! However, with LazyData, data() should not be needed, 
> and I wouldn't know where to place it.
>
> I now found the root cause, and it was very basic: I still had a 
> namespace (CAs::...) reference to one of the data files in an example, 
> and this - of course, because of LazyData instead of exporting - 
> wasn't found, which made the check fail.
>
> Best, Ulrike
>
> Am 27.06.2025 um 07:42 schrieb Georgi Boshnakov:
>> You can use data() to make datasets available in checks. Same for 
>> examples.
>>
>> Georgi Boshnakov
>>
>> Sent from Outlook for Android <https://aka.ms/AAb9ysg>
>> ------------------------------------------------------------------------
>> *From:* R-package-devel <r-package-devel-bounces using r-project.org> on 
>> behalf of Ulrike Grömping <ulrike.groemping using bht-berlin.de>
>> *Sent:* Friday, June 27, 2025 1:41:17 AM
>> *To:* r-package-devel using r-project.org <r-package-devel using r-project.org>
>> *Subject:* [R-pkg-devel] data files not found in package checks
>> Dear package developers, I likely miss something silly, but I fail to 
>> find the root cause. I used to have my package data in sysdata. rda, 
>> even though I exported some of them for the users' direct use. With 
>> my new package CAs, I now want to move
>> Dear package developers,
>>
>> I likely miss something silly, but I fail to find the root cause. I used
>> to have my package data in sysdata.rda, even though I exported some of
>> them for the users' direct use. With my new package CAs, I now want to
>> move those files that are meant both for user information and for the
>> inner workings of the package to the data/ folder, and I use "LazyData:
>> true" in the description. The files are in the data folder as single rda
>> files, and their documentation R files are in the R folder.
>>
>> Unfortunately, I do not know how to make the data visible during the
>> checks. The checks keep throwing notes "no visible binding for global
>> variable ...", and the examples fail, because the data from the folder
>> data are not found. This happens regardless whether --as-cran is active
>> or not.
>>
>> However, the package installs OK, the help files for the data objects
>> are there, and the example code that failed the checks runs without
>> problems. I have made sure that the objects from the data folder were
>> not in the workspace prior to loading the package, i.e., the installed
>> package appears to have them available. I have also installed the
>> package before running the checks, without success. Perhaps I should
>> also mention that I am on Windows, and (still) use R 4.3.0, though I do
>> not expect that to be the root cause for the problem.
>>
>> Does someone have pointers how I can make the checks find the data 
>> files?
>>
>> Best, Ulrike
>>
>> -- 
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>> ## Prof. Ulrike Groemping
>> ## FB II
>> ## BHT
>> ##############################################
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