reorder logp params in skew normal

Author: farhanreynaldo

pymc3/distributions/continuous.py

@@ -3193,7 +3193,7 @@ def dist(cls, alpha=1, mu=0.0, sigma=None, tau=None, sd=None, *args, **kwargs):
 
         return super().dist([mu, sigma, alpha], *args, **kwargs)
 
-    def logp(value, alpha, mu, sigma):
+    def logp(value, mu, sigma, alpha):
         """
         Calculate log-probability of SkewNormal distribution at specified value.