[R-pkg-devel] Assigning a variable to global environment

[Matt Denwood]

> On 11 Dec 2020, at 18:32, Tiago Olivoto <tiagoolivoto using gmail.com> wrote:
> 
> Hi everyone,
> This can be a very simple question, but I really have the following doubt.
> 
> CRAN Policies says that 'Packages should not modify the global environment
> (user’s workspace)'. So, may I or may I not create a function that will
> call internally the following code? (a simple example)
> 
> assign("name", 1, envir = .GlobalEnv)

You may not - and for good reason, as the user may have an existing variable called “name” that will be destroyed by such an action.  If you run "R CMD check —as-cran" on a package containing this code you will get a warning (or maybe a note, I can’t remember), and the package would most likely be refused if you tried to submit it to CRAN.

Cheers,

Matt


> 
> Cheers
> Tiago
> 
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