I was working today with “R” to get more patterns with the Corrgram. In the demo raw spectra I wanted this time to look to a band as much Gaussian as possible. I select it and trim the spectra to that region treated with the MSC (“Multiple Scatter Correction”).
After I decided to apply another Math treatment (SG filter 2ª derivative). With the 2ª derivative the peak maximum in MSC, change to peak minimum.