Can you pickle a fitted knn regressor?

[ecavan]

Having trouble saving the trained mode, "Can't pickle <function _to_multivariate_metric..multivariate_metric

"

[vnmabus]

Which version of the software are you using?

Can you provide a minimal example?

[ecavan]

Python: 3.9.12
scikit-fda==0.7.1
sklearn == 1.0.2

I was able to save the model by using the multivariate_metric=True parameter with a small decrease to the testing score when I reloaded it

[vnmabus]

The PR ##465, merged to the develop branch should fix this, as well as improving performance significantly for large datasets. Please test the develop version to see if it fixes your problem.