I've recently added spin-1, spin-3 and spin-4 fields to TreeCorr. Spin-0 fields can be done using just multiple calls to NK or KK, but it seems worth having a letter for complex spin-0 fields for cases where that might be relevant. I don't have any specific use cases in mind. This is just for overall API consistency really.
The new implemented classes are NZCorrelation, KZCorrelation, and ZZCorrelation. If someone wants additional pairing of Z with G, T, or Q, let me know. It's not particularly hard, but I won't bother with those until someone requests it.
I've recently added spin-1, spin-3 and spin-4 fields to TreeCorr. Spin-0 fields can be done using just multiple calls to NK or KK, but it seems worth having a letter for complex spin-0 fields for cases where that might be relevant. I don't have any specific use cases in mind. This is just for overall API consistency really.
The new implemented classes are NZCorrelation, KZCorrelation, and ZZCorrelation. If someone wants additional pairing of Z with G, T, or Q, let me know. It's not particularly hard, but I won't bother with those until someone requests it.