@@ -2606,12 +2606,10 @@ def _fit(
26062606
26072607def lrt (
26082608 data ,
2609- reduced_formula : str = None ,
2610- full_formula : str = None ,
26112609 reduced_formula_loc : str = None ,
26122610 full_formula_loc : str = None ,
2613- reduced_formula_scale : str = None ,
2614- full_formula_scale : str = None ,
2611+ reduced_formula_scale : str = "~1" ,
2612+ full_formula_scale : str = "~1" ,
26152613 as_numeric : Union [List [str ], Tuple [str ], str ] = (),
26162614 init_a : Union [np .ndarray , str ] = "AUTO" ,
26172615 init_b : Union [np .ndarray , str ] = "AUTO" ,
@@ -2621,7 +2619,7 @@ def lrt(
26212619 size_factors : np .ndarray = None ,
26222620 batch_size : int = None ,
26232621 training_strategy : Union [str , List [Dict [str , object ]], Callable ] = "AUTO" ,
2624- quick_scale : bool = None ,
2622+ quick_scale : bool = False ,
26252623 dtype = "float64" ,
26262624 ** kwargs
26272625):
@@ -2632,10 +2630,6 @@ def lrt(
26322630 use wald() for constraints.
26332631
26342632 :param data: input data
2635- :param reduced_formula: formula
2636- Reduced model formula for location and scale parameter models.
2637- :param full_formula: formula
2638- Full model formula for location and scale parameter models.
26392633 :param reduced_formula_loc: formula
26402634 Reduced model formula for location and scale parameter models.
26412635 If not specified, `reduced_formula` will be used instead.
@@ -2711,15 +2705,6 @@ def lrt(
27112705 if len (kwargs ) != 0 :
27122706 logger .info ("additional kwargs: %s" , str (kwargs ))
27132707
2714- if full_formula_loc is None :
2715- full_formula_loc = full_formula
2716- if reduced_formula_loc is None :
2717- reduced_formula_loc = reduced_formula
2718- if full_formula_scale is None :
2719- full_formula_scale = full_formula
2720- if reduced_formula_scale is None :
2721- reduced_formula_scale = reduced_formula
2722-
27232708 if isinstance (as_numeric , str ):
27242709 as_numeric = [as_numeric ]
27252710
@@ -2817,7 +2802,7 @@ def wald(
28172802 size_factors : np .ndarray = None ,
28182803 batch_size : int = None ,
28192804 training_strategy : Union [str , List [Dict [str , object ]], Callable ] = "AUTO" ,
2820- quick_scale : bool = None ,
2805+ quick_scale : bool = False ,
28212806 dtype = "float64" ,
28222807 ** kwargs
28232808):
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