[业评] IGN：今年PS3的游戏是最优秀的

引用:

bayesian number = ((average_number_of_votes * average_weighting) + (system_number_of_votes * system_avg_weighting)) / (average_number_of_votes + system_number_of_votes)

wii_number_of_votes = 268
xbox_number_of_votes = 221
ps3_number_of_votes = 165
average_votes = (268+221+165)/3 = 218

wii_avg = 5.8
xbox_avg = 6.6
ps3_avg = 7.1
average_weighting = (5.8*268 + 6.6*221 + 7.1*165)/(268+221+165) = 6.39

wii_bayesian = ((218*6.39)+(268*5.8)) / (218+268) = 6.06
xbox_bayesian = ((218*6.39)+(221*6.6)) / (218+221) = 6.49
ps3_bayesian = ((218*6.39) + (165*7.1)) / (218+165) = 6.69