From ba98cc0268c13be50ff746245da2193d0e93d0e2 Mon Sep 17 00:00:00 2001
From: Marco Biasini <marco.biasini@unibas.ch>
Date: Tue, 28 Dec 2010 13:06:16 +0100
Subject: [PATCH] added Median function
---
modules/base/pymod/stutil.py | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/modules/base/pymod/stutil.py b/modules/base/pymod/stutil.py
index 75bb92248..7401e62cb 100644
--- a/modules/base/pymod/stutil.py
+++ b/modules/base/pymod/stutil.py
@@ -47,6 +47,19 @@ def Mean(xs):
raise RuntimeError("Can't calculate mean of empty sequence")
return sum(xs)/len(xs)
+@FloatValueExtract
+def Median(xs):
+ """
+ Calculate median of dataset
+ """
+ if len(xs)==0:
+ raise RuntimeError("Can't calculate median of empty sequence")
+ sorted_xs=sorted(xs)
+ if (len(xs) % 2)==0:
+ return (sorted_xs[len(xs)/2]+sorted_xs[len(xs)/2]+1)/2
+ else:
+ return sorted_xs[len(xs)/2]
+
@FloatValueExtract
def StdDev(xs):
"""
--
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