Merge pull request #507 from jseabold/fix-45

ENH: Protect numdifftools import. Closes #45
statsmodels · Oct 5, 2012 · e31e25f · e31e25f
2 parents d587df8 + 57e0d65
commit e31e25f
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/statsmodels/tsa/mlemodel.py b/statsmodels/tsa/mlemodel.py
@@ -13,7 +13,10 @@
 
 import numpy as np
 
-import numdifftools as ndt
+try:
+    import numdifftools as ndt
+except:
+    pass
 
 from statsmodels.base.model import LikelihoodModel