R help - Sep 2014 - How to use multi paragraph comment like /* and */ in cpp?

Dear expeRts,
?? I find it's terrible? when? i want to comment multi paragraph (e.g.? a 30
lines function) , i have to comment each line with #,? is there any good way to
do that ?
?? I investgate it, but found no easy way, may you help me ?





--

PO SU
mail: desolator88 at 163.com 
Majored in Statistics from SJTU

There are no multi line comment markers in R. However, since you are always
referring to RStudio you might want to look into roxygen, since their editor
supports that tool.

I would also suggest making more functions that are smaller.
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Sent from my phone. Please excuse my brevity.

On September 8, 2014 7:49:32 PM PDT, PO SU <rhelpmaillist at 163.com>
wrote:
>
>Dear expeRts,
>?? I find it's terrible? when? i want to comment multi paragraph (e.g.?
>a 30 lines function) , i have to comment each line with #,? is there
>any good way to do that ?
>?? I investgate it, but found no easy way, may you help me ?
>
>
>
>
>
>--
>
>PO SU
>mail: desolator88 at 163.com 
>Majored in Statistics from SJTU
>______________________________________________
>R-help at r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

A workaround is to escape the evaluation of the lines. For example:

tt <- 0
while(tt > 0){
  cat('rr\n')
}

Regards,
Pascal

On Tue, Sep 9, 2014 at 11:49 AM, PO SU <rhelpmaillist at 163.com>
wrote:
>
> Dear expeRts,
>    I find it's terrible  when  i want to comment multi paragraph (e.g. 
a 30 lines function) , i have to comment each line with #,  is there any good
way to do that ?
>    I investgate it, but found no easy way, may you help me ?
>
>
>
>
>
> --
>
> PO SU
> mail: desolator88 at 163.com
> Majored in Statistics from SJTU
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.


-- 
Pascal Oettli
Project Scientist
JAMSTEC
Yokohama, Japan

>>>>> "PS" == PO SU <rhelpmaillist at 163.com>
>>>>>     on Tue, 9 Sep 2014 10:49:32 +0800 writes:
    PS> Dear expeRts, ?? I find it's terrible? when? i want to
    PS> comment multi paragraph (e.g.? a 30 lines function) , i
    PS> have to comment each line with #,? is there any good way
    PS> to do that ?  ?? I investgate it, but found no easy way,
    PS> may you help me ?

Even though I can easily mark such a block and use the general
emacs  comment key    M-;
to comment each of those lines,
I often prefer

 if(FALSE) {

   ...
   ...
   ...

 }

which in the case of a single function definition which is only
one R expression can even do without the braces  {, }
and hence very easily activated/deactivated.

What I do in cases like that is wrap the code in a FALSE statement so it
won't get executed:  its easy to add and remove as needed.

If (FALSE) {

...Code to exclude....

}



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-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of PO SU
Sent: Monday, September 08, 2014 10:50 PM
To: R. Help
Subject: [R] How to use multi paragraph comment like /* and */ in cpp?


Dear expeRts,
   I find it's terrible  when  i want to comment multi paragraph (e.g.  a 30
lines function) , i have to comment each line with #,  is there any good way to
do that ?
   I investgate it, but found no easy way, may you help me ?





--

PO SU
mail: desolator88 at 163.com
Majored in Statistics from SJTU
______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.