The quasi-constant feature count test allows you to specify a threshold on the number of features that are near-constant (low variance).


  • Category: Integrity.
  • Task types: Tabular classification, tabular regression.
  • Availability: and .

Why it matters

  • Quasi-constant features have very low variance and tend to not be as useful for models.
  • If a feature shouldn’t be quasi-constant but is, you might want to re-normalize it.