about chgdiff.pl

[lgxyz]

When using chgdiff.pl CHGCAR1 CHGCAR2, we want CHGCAR1-CHGCAR2, but I note in the code that is CHGCAR2-CHGCAR1. Is this a proplem? Pls give some suggestion. Thanks!

[graeme]

Can't you just run chgdiff.pl CHGCAR2 CHGCAR1 ?

[lgxyz]

Ok! But I means that many people want to use chgdiff.pl CHGCAR1 CHGCAR2, giving the result of CHGCAR1-CHGCAR2. In fact they will get CHGCAR2-CHGCAR1. Pls note this when one uses chgdiff.pl.