You could use any of the gui toolkits (tcltk, gWidgets ...)
and create a watch window which displays the changing value of your
variable in a popup widged.
On 2/16/2011 10:54 AM, Rainer M Krug wrote:
> 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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>
>
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
