I am currently writing a paper. I would like to have the papers cateogrized in: TODO, excluded, included.
That means, a paper can be either TODO, excluded, included. Can I do that with groups? I started with “included” and “excluded”. However, these two groups are not mutually exclusive.
There was a similar question in 2016. The solution proposed at How to create non-overlapping groups - #2 by simonharrer is unclear to me. I do not find the negation sign.
The hint on free search expression did not help me either. The documentation at Groups - JabRef is rather short.
NOT does not work here:
Expression: NOT(groups=excluded) AND NOT(groups=included)
It seems only the firrst “NOT” is handled and the second one ignored. I also tried switching the inner conditions, but did not work, too.