As most of you know, Igraph gives error when weight values are not positive, so even when they are "0".
The error is this one:
Weight vector must be positive. Invalid value
I've seen other questions on Stack and answers suggests to change the value from 0 to, for example, 0.001 or, anyway, solve the problem by changing the value.
Assuming that I need the values to be 0 for statistical purposes, are there any other solutions?