I am trying to make an R package that contains data files.
One data file, mydata.Rd, is annotated with the following Roxygen2 code:
#' My Title
#' @docType data
#' @keywords datasets
#' @references my name
#' (\\href{https://doi.org/etc.})
#' @source \\href{https://source}
"mydata"
I get the error:
Variables with usage in documentation object 'mydata' but not in code: 'mydata'
I've tried multiple things to fix this error. For example:
LazyData: true
@usage
tag that was originally in my Roxygen2 codeAdvice is appreciated.
The problem is your .Rbuildignore
file.
You had the line
^data/.+$
and the syntax for these entries is a perl-like regular expressions. I'm guessing you wanted to hide all files that started with a dot? But in regular expressions, a dot matches any character. So you were ignoring all your data files. You should have see this in your build log
─ checking for empty or unneeded directories
Removed empty directory ‘hansardr/data’
Omitted ‘LazyData’ and ‘LazyDataCompression’ from DESCRIPTION
The /data/
folder was empty because everything was ignored. You need to escape a dot with a slash in a regular expression
^data/\.+$
Then you won't get that particular error any more because your data files will actually exist when the code goes to check the variable names.
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