Merge branch 'port-distribution' of github.com:farhanreynaldo/pymc3 i…

…nto port-distribution

pymc3/distributions/continuous.py

@@ -1470,6 +1470,21 @@ def logcdf(value, mu):
         )
 
 
+class LaplaceRV(RandomVariable):
+    name = "laplace"
+    ndim_supp = 0
+    ndims_params = [0, 0]
+    dtype = "floatX"
+    _print_name = ("Laplace", "\\operatorname{Laplace}")
+
+    @classmethod
+    def rng_fn(cls, rng, mu, b, size=None):
+        return stats.laplace.rvs(mu, b, size=size, random_state=rng)
+
+
+laplace = LaplaceRV()
+
+
 class Laplace(Continuous):
     r"""
     Laplace log-likelihood.