Thanks. Workarounds are interesting but... what's the point of the NOTE
in the first place?
H.
On 2/4/24 09:07, Duncan Murdoch wrote:
> On 04/02/2024 10:55 a.m., Izmirlian, Grant (NIH/NCI) [E] via R-devel
> wrote:
>> Well you can see that yeast is exactly weekday you have. The way out
>> is to just not name the result
>
> I think something happened to your explanation...
>
>>
>> toto <- function(mode)
>> {
>> ifelse(mode == 1,
>> function(a,b) a*b,
>> function(u, v, w) (u + v) / w)
>> }
>
> It's a bad idea to use ifelse() when you really want if() ... else ...
> . In this case it works, but it doesn't always. So the workaround
> should be
>
>
> toto <- function(mode)
> {
> if(mode == 1)
> function(a,b) a*b
> else
> function(u, v, w) (u + v) / w
> }
>
>
>>
>>
>> ________________________________
>> From: Grant Izmirlian <izmirlidr...@gmail.com>
>> Date: Sun, Feb 4, 2024, 10:44 AM
>> To: "Izmirlian, Grant (NIH/NCI) [E]" <izmir...@mail.nih.gov>
>> Subject: Fwd: [EXTERNAL] R-devel Digest, Vol 252, Issue 2
>>
>> Hi,
>>
>> I just ran into this 'R CMD check' NOTE for the first time:
>>
>> * checking R code for possible problems ... NOTE
>> toto: multiple local function definitions for �fun� with different
>> formal arguments
>>
>> The "offending" code is something like this (simplified from the real
>> code):
>>
>> toto <- function(mode)
>> {
>> if (mode == 1)
>> fun <- function(a, b) a*b
>> else
>> fun <- function(u, v, w) (u + v) / w
>> fun
>> }
>>
>> Is that NOTE really intended? Hard to see why this code would be
>> considered "wrong".
>>
>> I know it's just a NOTE but still...
>
> I agree it's a false positive, but the issue is that you have a
> function object in your function which can't be called
> unconditionally. The workaround doesn't create such an object.
>
> Recognizing that your function never tries to call fun requires global
> inspection of toto(), and most of the checks are based on local
> inspection.
>
> Duncan Murdoch
>
> ______________________________________________
> R-devel@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
--
Hervé Pagès
Bioconductor Core Team
hpages.on.git...@gmail.com
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