Fix #742, while taking into account the differences between Python's …

…indexing of vectors and Matlab's indexing (cf. Bastia et al (2004), Eq. 1)
blue-yonder · Sep 1, 2020 · babed38 · babed38
1 parent 6248793
commit babed38
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/tsfresh/feature_extraction/feature_calculators.py b/tsfresh/feature_extraction/feature_calculators.py
@@ -533,7 +533,7 @@ def cid_ce(x, normalize):
 
     .. math::
 
-        \\sqrt{ \\sum_{i=1}^{n-2lag} ( x_{i} - x_{i+1})^2 }
+        \\sqrt{ \\sum_{i=1}^{n-1} ( x_{i} - x_{i-1})^2 }
 
     .. rubric:: References