update median calculation slightly

2013-06-26 22:52:08 -07:00 · 2013-06-26 22:52:08 -07:00 · 7c0dfd35d1
parent 49cade467c
commit 7c0dfd35d1
1 changed files with 2 additions and 2 deletions
--- a/boltons/statsutils.py
+++ b/boltons/statsutils.py
@ -77,10 +77,10 @@ def median(vals):
    if not vals:
        return 0.0
    sorted_vals, size = sorted(vals), len(vals)
+    mid = size // 2  # aka floor division
    if size % 2 == 1:
-        return sorted_vals[(size - 1) / 2]
+        return sorted_vals[mid]
    else:
-        mid = size / 2
        return (sorted_vals[mid - 1] + sorted_vals[mid]) / 2.0