[R] R debugging options

Spencer Graves spencer.graves at pdf.com
Fri Apr 21 18:20:45 CEST 2006

	  Regarding a function that lists functions, have you considered 
"getFunctions" in library(svIDE)?  You need to provide the argument, as 
in "getFunctions(1)";   "getFunctions()" returns an error message.

	  Beyond this, the "objects" function in S-Plus (at least version 6.2) 
has a "classes" argument, which the R 2.2.1 implementation does not 
have.  It doesn't look like it would be too difficult to add such an 
argument to "objects" in R, but I have not been in a position to 
volunteer to do it, and without that, I didn't feel it was appropriate 
for me to suggest it.

	  hope this helps,
	  spencer graves

John Fox wrote:

> Dear Larry,
> I'm not aware of an existing function that lists functions, but here's a
> simple solution:
> listFunctions <- function(all.names=FALSE, envir=.GlobalEnv){
>     # all.names=TRUE: include names beginning with "."
>     # envir: environment to search
>     Objects <- objects(envir, all.names=all.names)
>     if (length(Objects) == 0) Objects
>     else names(which(sapply(Objects, 
>         function(object) is.function(eval(parse(text=object),
> envir=envir)))))
>     }
> Getting mtrace() to use the function names returned by listFunctions() is a
> bit tricky, because of the way mtrace() evaluates its arguments. You could
> do something like the following:
> for(f in listFunctions()) mtrace(char.fname=f)
> Perhaps someone else knows of an existing or better solution.
> I hope this helps,
>  John
> --------------------------------
> John Fox
> Department of Sociology
> McMaster University
> Hamilton, Ontario
> Canada L8S 4M4
> 905-525-9140x23604
> http://socserv.mcmaster.ca/jfox 
> -------------------------------- 
>>-----Original Message-----
>>From: r-help-bounces at stat.math.ethz.ch 
>>[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Larry Howe
>>Sent: Tuesday, April 18, 2006 12:46 PM
>>To: r-help at stat.math.ethz.ch
>>Subject: Re: [R] R debugging options
>>On Monday April 17 2006 21:08, Francisco J. Zagmutt wrote:
>>>RSiteSearch("debug") or RSiteSearch("debugging") will give 
>>you a lot 
>>>or relevant information.  I personally use library(debug) 
>>>and it should do all the taks you asked about. There is a 
>>nice article 
>>>describing the debug lilbrary in the 2003/3 issue of R News 
>>Wow! That is a great package. I think it does all I need.
>>Is there a way to turn on debugging for all loaded functions? 
>>My source file contains many functions and I would prefer not 
>>to have to mtrace() each one. 
>>Something like
>>R-help at stat.math.ethz.ch mailing list
>>PLEASE do read the posting guide! 
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