R devel - Dec 2025 - [PATCH] Three improvements to confint() documentation and S4 support

Hello R developers,


I would like to contribute three improvements to the R source:


   1.

   *S4 object support for **confint.default()*

   -

      confint.default() now works on S4 objects as long as suitable coef()
      and vcov() methods exist.

   2.

   *substring()** and **substr()** improvements*

   -

      Both functions now accept i2 = NULL, allowing extraction until the
      end of the string.
      -

      Improves convenience and aligns with user expectations.

   3.

   *Introduction of **%notin%** operator*

   -

      %notin% added as a base R idiom for !(x %in% table).
      -

      Enhances readability and avoids repeated negation in user code.



*Motivation:*


   -

   Enhance S4 object compatibility.
   -

   Improve string handling convenience.
   -

   Provide a cleaner syntax for common negation of %in%.


*Impact:*


   -

   Backward compatible; no breaking changes for existing S3 workflows.

   The corresponding patch files are attached to this email.

   I hope these changes are helpful. I look forward to any feedback or
   suggestions you may have.


   Thank you for your time and for maintaining R!


   Best regards,

   Aakriti Kushwaha

   GitHub: aakritixyz <https://github.com/aakritixyz>

It looks like both items 1 and 3 have already been implemented in the 
development version of R; see 
https://github.com/r-devel/r-svn/blob/main/doc/NEWS.Rd (search for 
"notin" or "confint.default")

   It looks like your attached patches got stripped from the e-mail.  As 
https://www.r-project.org/mail.html discusses:

 > Furthermore, most binary e-mail attachments are not accepted, i.e., 
they are removed from the posting completely. As an exception, we allow 
application/pdf, application/postscript, and image/png (and x-tar and 
gzip on R-devel). You can use text/plain as well, or simply paste text 
into your message instead.

   (I don't know what format your attachments were in, but they didn't 
make it.)

   Ben Bolker

On 12/30/25 12:00, Aakriti Kushwaha wrote:
> Hello R developers,
> 
> 
> I would like to contribute three improvements to the R source:
> 
> 
>     1.
> 
>     *S4 object support for **confint.default()*
> 
>     -
> 
>        confint.default() now works on S4 objects as long as suitable coef()
>        and vcov() methods exist.
> 
>     2.
> 
>     *substring()** and **substr()** improvements*
> 
>     -
> 
>        Both functions now accept i2 = NULL, allowing extraction until the
>        end of the string.
>        -
> 
>        Improves convenience and aligns with user expectations.
> 
>     3.
> 
>     *Introduction of **%notin%** operator*
> 
>     -
> 
>        %notin% added as a base R idiom for !(x %in% table).
>        -
> 
>        Enhances readability and avoids repeated negation in user code.
> 
> 
> 
> *Motivation:*
> 
> 
>     -
> 
>     Enhance S4 object compatibility.
>     -
> 
>     Improve string handling convenience.
>     -
> 
>     Provide a cleaner syntax for common negation of %in%.
> 
> 
> *Impact:*
> 
> 
>     -
> 
>     Backward compatible; no breaking changes for existing S3 workflows.
> 
>     The corresponding patch files are attached to this email.
> 
>     I hope these changes are helpful. I look forward to any feedback or
>     suggestions you may have.
> 
> 
>     Thank you for your time and for maintaining R!
> 
> 
>     Best regards,
> 
>     Aakriti Kushwaha
> 
>     GitHub: aakritixyz <https://github.com/aakritixyz>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
-- 
Dr. Benjamin Bolker
Professor, Mathematics & Statistics and Biology, McMaster University
Associate chair (graduate), Mathematics & Statistics
Director, School of Computational Science and Engineering
* E-mail is sent at my convenience; I don't expect replies outside of 
working hours.

I believe that what is being proposed here are changes to recent entries in
NEWS.Rd.

On Tue, Dec 30, 2025, 10:04 Aakriti Kushwaha <aakriti.kushwaha.ak at
gmail.com>
wrote:
> Hello R developers,
>
>
> I would like to contribute three improvements to the R source:
>
>
>    1.
>
>    *S4 object support for **confint.default()*
>
>    -
>
>       confint.default() now works on S4 objects as long as suitable coef()
>       and vcov() methods exist.
>
>    2.
>
>    *substring()** and **substr()** improvements*
>
>    -
>
>       Both functions now accept i2 = NULL, allowing extraction until the
>       end of the string.
>       -
>
>       Improves convenience and aligns with user expectations.
>
>    3.
>
>    *Introduction of **%notin%** operator*
>
>    -
>
>       %notin% added as a base R idiom for !(x %in% table).
>       -
>
>       Enhances readability and avoids repeated negation in user code.
>
>
>
> *Motivation:*
>
>
>    -
>
>    Enhance S4 object compatibility.
>    -
>
>    Improve string handling convenience.
>    -
>
>    Provide a cleaner syntax for common negation of %in%.
>
>
> *Impact:*
>
>
>    -
>
>    Backward compatible; no breaking changes for existing S3 workflows.
>
>    The corresponding patch files are attached to this email.
>
>    I hope these changes are helpful. I look forward to any feedback or
>    suggestions you may have.
>
>
>    Thank you for your time and for maintaining R!
>
>
>    Best regards,
>
>    Aakriti Kushwaha
>
>    GitHub: aakritixyz <https://github.com/aakritixyz>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>
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