Re: [R] Show Progress in loop

From: Rainer M. Krug <RKrug_at_sun.ac.za>
Date: Mon 10 Oct 2005 - 19:08:45 EST

I put print(i) in the loop instead of i, but it still only prints (in the Windows R GUI) i after it finished the calculations. I guess it might be due to the output buffering you mentioned - but how do I unset it?

Rainer

Peter Dalgaard wrote:

> "Rainer M. Krug" <RKrug@sun.ac.za> writes:
> 
> 

>>Hi
>>
>>I have a loop which is doing time consuming calculations and I would
>>like to be able to have some feedback on where it is in it's
>>calculations. I tried to simply show the counter variable in the loop,
>>but id doesn't work as all display seems to be delayed until the loop is
>>completed. Is there any way of displaying the progress of a loop?
>>
>>Rainer
>>
>>The loop:
>>
>>for (i in 2:Result$NoSims)
>>{
>> ppp <- runifpoint(Result$NoPlants)
>> K <- Kest(ppp)
>> Result$LSim[i,] <- sqrt(K$iso / pi) - K$r
>> CM <- (Result$LSim[i,] * Result$LSim[i,]) / abs(K$r[2] - K$r[1])
>> Result$SigCM[i] <- sum(CM, na.rm=TRUE)
>> i #<========================Doesn't display in the loop
>>}
> 
> 
> Just print(i) and if on Windows, remember to unset output buffering. 
> 



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Rainer M. Krug, Dipl. Phys. (Germany), MSc Conservation
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Department of Conservation Ecology
University of Stellenbosch
Matieland 7602
South Africa

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       	Rainer@krugs.de

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Received on Mon Oct 10 19:22:17 2005

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