m.predict_scores() - list index out of range error

[danzhao2]

I got a list index out of range error when trying to run m.predict_scores(). Might anybody help out? Thanks.

[gjdv]

You probably encountered an error in fit_scores resulting in less than nmodels to be trained. Then indexing goes wrong in predict_scores.
To that end, I added raising an exception in fit_scores to make that more visible (see pull request #53)