From 56ce69ceff0748c24ff9c65bb8c45ac0e9f892e6 Mon Sep 17 00:00:00 2001
From: Philipp Rudiger <prudiger@anaconda.com>
Date: Thu, 8 Apr 2021 05:21:39 -0400
Subject: [PATCH] Fix divide by zero issues on Trend indicator (#2148)

---
 panel/widgets/indicators.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/panel/widgets/indicators.py b/panel/widgets/indicators.py
index cb6baa643b..68b4eeea62 100644
--- a/panel/widgets/indicators.py
+++ b/panel/widgets/indicators.py
@@ -647,7 +647,7 @@ def _process_param_change(self, msg):
         if 'value_change' in msg and msg['value_change'] == 'auto':
             if len(ys) > 1:
                 y1, y2 = self._data.get(self.plot_y)[-2:]
-                msg['value_change'] = y2/y1 - 1
+                msg['value_change'] = 0 if y1 == 0 else (y2/y1 - 1)
             else:
                 msg['value_change'] = 0
         return msg