score_test_zi

superglm.score_test_zi(

model: SuperGLM,

X,

y,

sample_weight=None,

offset=None,

) → ScoreTestZIResult

Van den Broek (1995) score test for zero-inflation.

Tests H0: no zero-inflation vs H1: zero-inflation, assuming a Poisson baseline model.

Parameters:

modelSuperGLM

A fitted Poisson model.

Xpandas or eager Polars DataFrame

Design matrix.

yarray-like

Observed response values.

sample_weightarray-like or None

Observation weights. Currently unsupported.

offsetarray-like or None

Optional offset.

Returns:

ScoreTestZIResult