[R] Show Progress in loop

[Rainer M. Krug]

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 at 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
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