| T O P I C R E V I E W |
| ccjohntsai |
Posted - 01/31/2011 : 02:27:44 AM
Analysis->Peaks and baseline -> Fit multiple peaks ->
Data type: Gaussian
Number of peaks: 2.
How can I write the equation of two-peak Gaussian function in my research papers ? Or I just need to mention that two-peak function is the convolution of Single Gaussian mode ?
For single peak:
http://originlab.com/www/helponline/Origin/en/UserGuide/Fit_Single_Multi_peak(s).html
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| 3 L A T E S T R E P L I E S (Newest First) |
| ccjohntsai |
Posted - 02/03/2011 : 09:09:48 AM
Thank you very much.
It is a great help to me. |
| easwar |
Posted - 02/01/2011 : 11:11:38 AM
Hi,
What that tool does is to fit the data with a combination/sum of multiple peak functions, each with its own width, center and amplitude, but with a shared y offset.
So for two peaks, with function set to gauss, the equation would be:
y = y0 + (A1/(w1*sqrt(PI/2)))*exp(-2*((x-xc1)/w1)^2) + (A2/(w2*sqrt(PI/2)))*exp(-2*((x-xc2)/w2)^2)
Easwar
OriginLab |
| VincentLiu |
Posted - 02/01/2011 : 04:03:20 AM
Do you mean you want to know the exact function we used for fitting multiple peaks?
Vincent
Originlab Technical Services |
