def computeStandardDistance(totalCrimeCord,dictPointMean):
resultDict=defaultdict(dict)
for k,v in totalCrimeCord.items():
d=map(lambda x: getDistance(x,dictPointMean[k] ),v)
value=stat.sigmaFloat(d)
resultDict[k]=value;
return resultDict
def computeRadiusDistance(meanPoint,listPoint):
d=map(lambda x: getDistance(x,meanPoint),listPoint)
valueMean=stat.meanFloat(d);
valueSigma=stat.sigmaFloat(d)
return valueMean +2*valueSigma;