Fix: missing implementation of fit method in homoscedastic regression

Author: heptaflar

uncertaintyx/fit/regression.py

@@ -155,6 +155,7 @@ def fit(
         :returns: The fit result.
         return ODR().fit(f, x, y)
         """
+        return ODR().fit(f, x, y)
 
 class HomoHeteroscedasticRegression(Fitting):
     """