statsmodels.genmod.bayes_mixed_glm.PoissonBayesMixedGLM.from_formula#
- classmethod PoissonBayesMixedGLM.from_formula(formula, vc_formulas, data, vcp_p=1, fe_p=2, vcp_names=None, vc_names=None)[source]#
Fit a PoissonBayesMixedGLM using a formula.
- Parameters:
- formula
str Formula for the endog and fixed effects terms (use ~ to separate dependent and independent expressions).
- vc_formulas
dictionary vc_formulas[name] is a one-sided formula that creates one collection of random effects with a common variance parameter. If using categorical (factor) variables to produce variance components, note that generally 0 + … should be used so that an intercept is not included.
- data
dataframe The data to which the formulas are applied.
- vcp_p
float The prior standard deviation for the logarithms of the standard deviations of the random effects.
- fe_p
float The prior standard deviation for the fixed effects parameters.
- vcp_names
list[str] The names of the variance component parameters.
- vc_names
list[str] The names of the random effect realizations.
- formula
- Returns:
PoissonBayesMixedGLMinstance.