The circmean & circvar methods have been changed in scipy, with the latter providing a normalised variance. Technically these now better reflect the way in which you calculate circular statistics, however this changes the weighting we had towards the combined variance (which in some ways highlights an issue with the maybe naive way in which we did things). This needs further investigation but I believe that the bond variance now has a greater contribution towards the summed variance.
For now we will pin to scipy<1.8, and then investigate how to move from here.
The circmean & circvar methods have been changed in scipy, with the latter providing a normalised variance. Technically these now better reflect the way in which you calculate circular statistics, however this changes the weighting we had towards the combined variance (which in some ways highlights an issue with the maybe naive way in which we did things). This needs further investigation but I believe that the bond variance now has a greater contribution towards the summed variance.
For now we will pin to scipy<1.8, and then investigate how to move from here.