ENH: Allow 1d exog

Reshape 1-d exog to 2d
bashtage · May 8, 2020 · 8a7bdef · 8a7bdef
1 parent 55e0d00
commit 8a7bdef
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/arch/univariate/mean.py b/arch/univariate/mean.py
@@ -444,6 +444,8 @@ def _generate_lag_names(self) -> List[str]:
     def _check_specification(self) -> None:
         """Checks the specification for obvious errors """
         if self._x is not None:
+            if self._x.ndim == 1:
+                self._x = self._x[:, None]
             if self._x.ndim != 2 or self._x.shape[0] != self._y.shape[0]:
                 raise ValueError(
                     "x must be nobs by n, where nobs is the same as "