rowlesmr
Is the sum of all I_after_scale_pks equivalent to numerical_area?
Or does numerical_area take into account other things?
alancoelho
The values could be different. numerical_area simply sums phase Ycalc values. Thus peaks that are only partly in the x-axis range of the phase will only have the area partly included.
rowlesmr
Roger that. But if all of each peak is in the range, then it should be the same.
alancoelho
>But if all of each peak is in the range, then it should be the same.
Yes. Be wary of peaks with very long tails; ie. PVII peaks with exponents close to 0.5. These have tails that are very long and a lot of the intensity is in the tails that are not withing the x-axis range.