Interactions setting in multi-class datasets about interpret

[paulbkoch]

Hi @chenxiang3luo -- We currently disable pairs for interactions because of the difficulty of visualizing the resulting EBM. If you don't mind losing some of the global interpretability though, it is possible to re-enable this by commenting out this section:

interpret/python/interpret-core/interpret/glassbox/_ebm/_ebm.py

Lines 951 to 961 in 4b5cef6

	if 2 < n_classes:
	warn(
	"Detected multiclass problem. Forcing interactions to 0. "
	"Multiclass interactions only have local explanations. "
	"They are not currently displayed in the global explanation "
	"visualizations. Set interactions=0 to disable this warning. "
	"If you still want multiclass interactions, this API accepts "
	"a list, and the measure_interactions function can be used to "
	"detect them."
	)
	break

The other option, if you would prefer not to modify the interpret code, is to use the measure_interactions function. Here's a notebook showing how to detect the interactions manually:

https://interpret.ml/docs/python/examples/custom-interactions.html

[chenxiang3luo]

Ok I got it. Thank you very much!