From 38486231cc4dc46d1ff055a38fe7c236cbe5c8aa Mon Sep 17 00:00:00 2001
From: Norman Hooper <nhooper@dimagi.com>
Date: Wed, 12 Sep 2018 20:27:10 +0200
Subject: reStructuredText (#336)

* median for Python 2

* More compat

* Support reStructuredText

* Tests
---
 tablib/packages/statistics.py | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 tablib/packages/statistics.py

(limited to 'tablib/packages/statistics.py')

diff --git a/tablib/packages/statistics.py b/tablib/packages/statistics.py
new file mode 100644
index 0000000..e97a6c9
--- /dev/null
+++ b/tablib/packages/statistics.py
@@ -0,0 +1,24 @@
+from __future__ import division
+
+
+def median(data):
+    """
+    Return the median (middle value) of numeric data, using the common
+    "mean of middle two" method. If data is empty, ValueError is raised.
+
+    Mimics the behaviour of Python3's statistics.median
+
+    >>> median([1, 3, 5])
+    3
+    >>> median([1, 3, 5, 7])
+    4.0
+
+    """
+    data = sorted(data)
+    n = len(data)
+    if not n:
+        raise ValueError("No median for empty data")
+    i = n // 2
+    if n % 2:
+        return data[i]
+    return (data[i - 1] + data[i]) / 2
-- 
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