From 346cb4693e3c61988111b2f4cd185c09cefc22f4 Mon Sep 17 00:00:00 2001
From: Max Zwiessele <ibinbei@gmail.com>
Date: Fri, 4 Mar 2016 11:34:04 +0000
Subject: [PATCH] [kern] inner transformation to types, start for the multitype
 pandas arrays

---
 GPy/kern/src/kern.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/GPy/kern/src/kern.py b/GPy/kern/src/kern.py
index 6a746092..3985fe97 100644
--- a/GPy/kern/src/kern.py
+++ b/GPy/kern/src/kern.py
@@ -70,7 +70,10 @@ class Kern(Parameterized):
 
     @Cache_this(limit=20)
     def _slice_X(self, X):
-        return X[:, self._all_dims_active]
+        try:
+            return X[:, self._all_dims_active].astype('float')
+        except:
+            return X[:, self._all_dims_active]
 
     def K(self, X, X2):
         """