From 77705ee2e646781f6caaf020b5057d8b4148cd85 Mon Sep 17 00:00:00 2001
From: aloctavodia <aloctavodia@gmail.com>
Date: Wed, 6 Nov 2024 11:17:22 -0300
Subject: [PATCH] fix corner case weibull pdf

---
 preliz/internal/special.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/preliz/internal/special.py b/preliz/internal/special.py
index 70eb2c2e..0b3387fd 100644
--- a/preliz/internal/special.py
+++ b/preliz/internal/special.py
@@ -462,6 +462,8 @@ def expit(x):
 def xlogy(x, y):
     if x == 0:
         return 0.0
+    if y == 0:
+        return -np.inf
     else:
         return x * np.log(y)