[proFit-list] Repetitive fit using pro Fit 6.2.2

[Christian Sommerhoff]

Dear Kurt, Dear Scott, Dear all,

Scott exactly describes what is my experience: the new-style pf.FitCreate & pf.FitSetArguments etc. ignores the values of xColumn and yColumn set by either pf.FitSetExperiment or pf.SetDefaultCols, even though print fitObj suggests that they were set.

The only workaround is using the old-syte pf.Fit

Best wishes,

Christian


> Dear all, I confirm this bug is also on pro-fit 6.1.14. I had the same problem and ended creating new tables for every new data.
> 
> Thank you for your support
> Ludovic Pecqueur
> 
> ----- Reply message -----
> From: "proFit Support" <profit at quansoft.com>
> To: "all things about pro Fit" <profit-list at quantum-soft.com>
> Subject: [proFit-list] Repetitive fit using pro Fit 6.2.2
> Date: Wed, Feb 9, 2011 05:27
> 
> 
> Dear Christian
> 
> There seems to be a bug here. We are investigating this. However, I presently understand that the fit would run correctly, but the check for empty columns is executed with the wrong parameters. So try to make sure that column 1 is not empty, and then run the fit again.
> 
> Best regards
> 
> Kurt Sutter
> QuantumSoft



> Dear pro Fit Team,
> 
> thanks for the new version of pro Fit and particularly for the inclusion of Python - a great new feature!
> 
> I am trying to repeat fitting over a range of columns, i.e. x-values are stored in col 2 and y-values in col 3-n. The loop works nicely, the output verifies that different y columns are used.  BUT the parameters obtained are always identical, i.e. the fit is done only once... 
> 
> What am I missing here?
> 
> 
> A second problem occurs if I now mask data in col 1 ( i.e. a column not used for fitting), which generates the error msg
> Python exception: There is no data to fit.
> Traceback (most recent call last):
>   File "Test_python.func", line 10, in <module>
> 
> Thanks in advance,
> Christian
> 
> ==> Python script
> # test repetitive fit over columns
> 
> for i in range(3, 5):
>     if not  pf.ColEmpty(i):
>         pf.SetDefaultCols(2,i,0,0)	
>         fitObj = pf.FitCreate(function = 'Exp')
>         pf.FitSetArguments(fitObject = fitObj, algorithm = pf.robust , printResults = True, onlyActiveParameters = False, fullDescription = True)
>         pf.FitSetExperiment(fitObject = fitObj, window =  pf.GetCurrentWindow(pf.dataType) )
>         fitResultObj = pf.FitExecute(fitObject = fitObj)
>         n = pf.FitResult(fitResultObject = fitResultObj, result = pf.nrFittedParameters)
>         print 'Number of parameters fitted:', n 
>         pf.FitResultDispose(fitResultObject = fitResultObj)
>         pf.FitDispose(fitObject = fitObj)
> 
> 
> 
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