From: Brian Warner <warner@allmydata.com>
Date: Mon, 16 Apr 2007 18:51:36 +0000 (-0700)
Subject: fec: remove unused mathutil.linear_fit_slope
X-Git-Tag: tahoe_v0.1.0-0-UNSTABLE~102
X-Git-Url: https://git.rkrishnan.org/components/com_hotproperty/%22doc.html/COPYING.GPL?a=commitdiff_plain;h=8e9d090bdbe018e9705c6f1edb804fcba8ef5379;p=tahoe-lafs%2Ftahoe-lafs.git

fec: remove unused mathutil.linear_fit_slope
---

diff --git a/pyfec/fec/util/mathutil.py b/pyfec/fec/util/mathutil.py
index ea8312d9..5f70a80e 100644
--- a/pyfec/fec/util/mathutil.py
+++ b/pyfec/fec/util/mathutil.py
@@ -58,18 +58,6 @@ def log_ceil(n, b):
         k += 1
     return k
 
-def linear_fit_slope(ps):
-    """
-    @param ps a sequence of tuples of (x, y)
-    """
-    avex = ave([x for (x, y) in ps])
-    avey = ave([y for (x, y) in ps])
-    sxy = sum([ (x - avex) * (y - avey) for (x, y) in ps ])
-    sxx = sum([ (x - avex) ** 2 for (x, y) in ps ])
-    if sxx == 0:
-        return None
-    return sxy / sxx
-
 def permute(l):
     """
     Return all possible permutations of l.