Displaying 1 result from an estimated 1 matches for "peaksign".
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peaking
2005 Aug 26
1
Pseudo-Voigt fit
Hi, I am sorry for this question, but I am trying to speed up an
application....
I will need to fit many x-y data sets (input from text files) to
4-parameter Pseudo-Voigt peak function.
Until now I used SigmaPlot macro to do it (enclosed just in case...)
peaksign(q) = if(total(q)>q[1], 1, -1)
xatymin(q,r) = xatymax(q,max(r)-r)
[Parameters]
a = if(peaksign(y)>0, max(y), min(y)) ''Auto {{previous: 60.8286}}
b = fwhm(x,abs(y))/2 ''Auto {{previous: 0.656637}}
c = .5 ''Auto {{previous: 6.82973e-010}}
x0 = if(peaksign(y)>0, xatyma...