Python 选择正确的损失计算指标
请帮助我选择计算损失的正确指标。 当前度量:Python 选择正确的损失计算指标,python,statistics,finance,Python,Statistics,Finance,请帮助我选择计算损失的正确指标。 当前度量: Maximum losses = number of potentially lost customers * median payment of potentially lost customers Real losses = the number of really lost customers * median payment of a really lost customers Losses = real losses / m
Maximum losses = number of potentially lost customers *
median payment of potentially lost customers
Real losses = the number of really lost customers *
median payment of a really lost customers
Losses = real losses / maximum losses
丢失的客户是对可能丢失的客户的选择。
因此,实际损失应始终小于最大损失
但事实上,实际损失可能大于最大损失。例如。
客户的最大损失:
1 2 2 2 2 3 3 3 3: 2 (median payment) * 9 (number of customers) = 18.
同一人群的实际损失:
2 2 2 3 3 3 3: 3 (median payment) * 7 (number of customers) = 21.
使用sum()而不是中位数是不切实际的,因为损失是非常“扭曲”和不稳定的。您使用哪种语言?(这对你的问题并不重要,但你可能会增加你的听众:-)你在使用哪种语言?(这对你的问题并不重要,但你可能会增加你的听众:-)