Minimizing noise: Funcfit on wave operations?

You might want to look at the Optimize operation. Somewhat more cumbersome than CurveFit, but more suited to the problem, I think.

DisplayHelpTopic "Finding Minima and Maxima of Functions"

You would have to write a function that computes C and Variance(C). Use Optimize to find the f that minimizes variance.

John Weeks
WaveMetrics, Inc.
support@wavemetrics.com

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Thank you! I was not aware of optimze. It does exactely what I need!

Just 3 suggestion on improving the help function:
- Optimize must be supplied a pWave
- the user defined must require a wave as first parameter
(the error message without these two waves is not self explaining. Waves are required, even if in both cases the wave is never touched)
- the value returned by "return" can be calculated before (all exsamples in the manual calculate it in the same line), e.g:

function test(w,x)
wave w
variable x
wavestats/q w
return v_sdev
end

The 3 points were not directely clear to me from reading the help files, maybe other people would struggle there as well.

best regards,

Ralf

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Well, that information is in the help link I included, albeit in the section on 1D optimization. I guess I expected you to read straight through; the info in the 1D case is easier to read, and provides an introduction to the topic.

The last point seems like basic programming, though I admit that all my examples did the computation right in the return statement. I wanted examples where the function itself is simple enought that it wasn't the part that was difficult to understand.

John Weeks
WaveMetrics, Inc.
support@wavemetrics.com

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