Trying to understand area calculations in Gaussian and ExpModGauss Peaks
Wed, 04/30/2014 - 02:31 pm
As a baseline I am using Area of Gaussian = Height * C * sort(2*pi)
where c is the standard deviation
For a Gaussian Fit of a peak I get
Area = 437619
Height = 45343
Width = 5.4452
When I run the sums is appears that the width reported = sqrt(2)*C
In the ExpModGaussian
Area = 712608
Height = 84684
Width = 3.2445
When I run the sums it appears that the reported width = C (i.e. no sqrt(2) factor).
So a couple of questions:
Am I correct in assuming that the ExpModGaussian only alters the shape of the distribution and not the overall area?
From the peak functions.ipf file it appears as the sort(2) factor is correct for the Gaussian?
Is the reason there is no sqrt(2) in the ExpModGaussian is because it is normalized to area?
Just trying to understand.