Topic: Mass defect plot; floor vs ceil


A quick question what is the purpose of changing the nominal mass between floor and ceiling when looking at mass defect plots?

Specifically; the kendrick defect plots I plot using python have the same defect scale (0:-1) as mmass's when nominal mass is at floor, yet I would like the plot to have the same scale (0:1) as mmass defect plot when Ceil is selected.


Re: Mass defect plot; floor vs ceil

The idea was that for some elements the mass defect is so strong that for the whole compound it can be greater than 0.5 (or -0.5). Therefore simple rounding would not work. I typically switch between all three methods to get some impression about the data.