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Non linear curve fiting Poly VI_Gmath.lvb:Nonlinear Curve Fit.vi is not executable

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Hi,

 

 

Description of intended function:

Given position as a function of time, I am attempting to calculate the powerspectrum of the object in motion, then "block" the data (smooth it by replacing n consecutive elements of data with the average of those n elements), lastly I need to apply a curve fit to the blocked power spectrum. However the code will not run, saying there is an internal problem to the curve fitting VI. speciffically, the error list says: 

 

Poly VI 'NI_Gmath.llvlib:Nonlinear Curve Fit.VI': SubVI is not executable

Poly VI'NI_Gmath.lvlib:Nonlinear Curve Fit.vi': Polymorphic subVI is broken

 

Attached is the program, it can be run from the "main pannel.vi" file. The test.dat file is the data I've been using for testing

 

 

This is my first post to the NI forum, so I'll pre-emptively appologize if this is in the wrong place.

 

Thanks, 

Sam


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