--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/mytools/stats.txt	Fri Mar 09 19:37:19 2012 -0500
@@ -0,0 +1,36 @@
+#! /usr/bin/python
+# stats.py
+# P. Clote
+
+import sys,os,tempfile,string,math
+
+
+def getStats(L):
+  #L is list
+  if L==[]:
+    return (0,0,0,0)
+  max = -sys.maxint
+  min = sys.maxint
+  
+  count = 0
+  sum   = 0.0
+  sumSquares = 0.0
+  for value in L:
+    x = float(value)
+    if x<min: min=x
+    if x>max: max=x
+    count = count+1
+    sum = sum+x
+    sumSquares = sumSquares+x**2
+  mean = sum/count
+  variance = sumSquares/count - mean**2
+  stdev    = math.sqrt(variance)
+  #print "Mean:%f\tStDev:%f\tMax:%f\tMin:%f" % (mean,stdev,max,min)
+  return (mean,stdev,max,min)
+
+
+if __name__ == '__main__':
+  L = sys.argv[1:] 
+  (mean,stdev,max,min) = getStats(L)
+  print "Mean:%f\tStDev:%f\tMax:%f\tMin:%f" % (mean,stdev,max,min)
+