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 External dataset in fitfunction possible?		  New Topic  Reply to Topic
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Rollo78

Germany
6 Posts
Posted - 08/02/2011 :  3:55:09 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. 8.5.0G and Service Release 0
Operating System: Win 7

Hi,

i use the impulse analyzer to fit a Bremsstrahlung spectra. I've created therefore a FDF-File with a rather complicated fit function. Is it possible to use external data e.g. from the worksheet in the fitfunction during the fit?

That means for a certain "x" (channel) i'll calculate an integer number with one of the fitparameters "x*k=c", read out from the worksheet Column(..), Row(c) a double value and use it in the fit function as factor for my fit function.

e.g.:
int c;
c=k*x;
Fitfunction: y=y0 + x*k*(column,row:c)

I hope it's not too confusing!

Best Regards
Marco

larry_lan

China
Posts
Posted - 08/02/2011 :  9:46:15 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Marco:

Here is an example. You don't need to care about the convolution part. The example shows that, inside the function body, you can use Worksheet wks = Project.ActiveLayer(); to get the active worksheet, and then define datasets for worksheet columns. Hope this helps.

Thanks
Larry
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Rollo78

Germany
6 Posts
Posted - 08/15/2011 :  05:54:48 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thank you for your help!

Greetings
Marco
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