I'm using Critic2 software to perform post-processing of the charge density of metallic alloys. With the charge density obtained from the Self-Consistent-Field calculation (for that I'm using Quantum ESPRESSO), Critic uses both the Yu and Trinkle and Bader methods to perform the charge analysis.
The results are the attractors (namely the atoms) within the structure, the atomic volumes, the all-electron density integrated into its basis (POP), the Laplacian of the all-electron basis (LAP), and the pseudo-density (since we use pseudo-potentials) ($2).
Bellow an example of its output using the Yu and Trinkle method:
My question is: how to analyze such results? Or in a more general fashion, how to analyze charge results? All we got are numbers, what are their meanings?