f373fff0861a23f1fb4a82a108cbd7817761083d,linearmodels/panel/model.py,PanelOLS,from_formula,#Any#Any#,152

Before Change

    def from_formula(formula, data):
        na_action = NAAction(on_NA="raise", NA_types=[])
        data = PanelData(data)
        parts = formula.split("~")
        parts[1] = " 0 + " + parts[1]
        parts[1], entity_effect = PanelOLS._parse_effect(parts[1], "EntityEffect")
        parts[1], fixed_effect = PanelOLS._parse_effect(parts[1], "FixedEffect")
        if entity_effect and fixed_effect:
            raise ValueError("Cannot use both FixedEffect and EntityEffect")

After Change

                effects[term.name()] = True
                rm_list.append(term)
        for term in rm_list:
            mod_descr.rhs_termlist.remove(term)

        if effects["EntityEffect"] and effects["FixedEffect"]:
            raise ValueError("Cannot use both FixedEffect and EntityEffect")
        entity_effect = effects["EntityEffect"] or effects["FixedEffect"]

Instances