[R] monitor variable change

Alaios alaios at yahoo.com
Wed Feb 16 11:21:22 CET 2011


I think we are both talking for watchpoints-breakpoints

--- On Wed, 2/16/11, Rainer M Krug <r.m.krug at gmail.com> wrote:

> From: Rainer M Krug <r.m.krug at gmail.com>
> Subject: Re: [R] monitor variable change
> To: "Alaios" <alaios at yahoo.com>
> Cc: R-help at r-project.org
> Date: Wednesday, February 16, 2011, 9:54 AM
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> On 02/16/2011 10:38 AM, Alaios wrote:
> > Dear all I would like to ask you if there is a way in
> R to monitor in R when a value changes. 
> > 
> > Right now I use the sprintf('my variables is %d \n, j)
> to print the value of the variable. 
> > 
> > Is it possible when a 'big' for loop executes to open
> in a new window to dynamically check only the variable I
> want to.
> 
> I don't think that this functionality is implemented.
> 
> But I guess you can implement it - would it be possible to
> re-define th
> "<-" to check if a certain variable is to be changed,
> and then print it?
> 
> Might be tricky and would slow everything considerably
> down.
> 
> Just a thought,
> 
> Rainer
> 
> > 
> > If I put all the sprintf statements inside my loop
> then I get flooded with so many messages that makes it
> useless.  
> > 
> > Best Regards
> > Alex
> > 
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> reproducible code.
> 
> 
> - -- 
> Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc
> (Conservation
> Biology, UCT), Dipl. Phys. (Germany)
> 
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