Normalization to an specific band or range?

[nicocopez]

Sometimes rather than normalizing to minmax or unity would be very helpful to normalize to either the maximum intensity or the integrated area of an specific band, or just to some range of the spectrum. In ramanchada is straight forward to do so, but is there any posibility to implement this in Oranchada?

I see a posibility might be to do a peak fitting, and then used any fit parameter to do some operation on the spectra. Is there a widget to add, substract, multiply, etc spectra by a number?

Related to this I will create another comment. It can be very useful to calculate the integrated area under a band or a spectrum range. For example, I might be collecting a series of spectra, where I see how some of my bands change over time, while others should stay static. I would like to use the static bands to normalize the spectrum and calculate the area under the changing ones to get an idea of the evolution of my sample based on how the area under such bands evolve.

Should these questions be moved to ramanchada2 discussion forum as well?