Show prevalence of largest class in Performance (Classification) and similar operators

Tripartio · 2020-11-09T14:29:29+00:00

When doing classification tasks, I normally use the prevalence (frequency) of the largest (modal) class as the naïve benchmark against which to compare if a single model is useful or not. For example, if my label is binary yes and no, with yes comprising 9% of the dataset and no comprising 91%, then I would expect the…