[Mulan-list] Error running LabelPowersetAttributeEvaluator

[Ricardo C. <ce...@gm...>]

Hello,

I just downloaded Mulan, and I am trying to perform a dimensionality
reduction using LabelPowersetAttributeEvaluator.

I got this error:
[image: Imagem inline 2]

I have checked the LabelPowersetTransformation class and found this error:

[image: Imagem inline 1]

Any ideas of what can cause this?

Thank you,

Kind regards,
Ricardo