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Trapezoidal fit in LabVIEW

Hi,

 

I want to select a trapezoidal curve fit for my set of data. The data points are showed in the picture below.

 

Is there any way to get a trapezoidal best fitting curve in LabVIEW? And is there a way to calculate the area under this trapezoidal best fitting curve?

 

Thanks in advance,

 

Dries

 

 

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You can use "nonlinear curve fit". Follow the help and create a VI model with a few parameters depending on symmetries (amplitude, offset (if any); four key x-positions (or less if the sides are mirror symmetric)). Once you have the parameters, calculating the area is simple geometry, right?

 

You can find more detailed tips e.g. here.

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