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UID47001沙弥 主题帖子精华积分33存在感 宅魂 合奏豆 注册时间2014-9-1最后登录1970-1-1在线时间 小时 
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| Function themean(datarange) 
 Dim item As Variant
 Dim i As Integer, y As Integer
 
 i = 0
 y = 0
 For Each item In datarange
 i = i + 1
 y = y + item
 Next
 
 themean = y / i
 
 End Function
 Function thestv(datarange)
 
 Dim item As Variant
 Dim i As Integer, y As Integer
 
 i = 0
 y = 0
 For Each item In datarange
 i = i + 1
 y = y + item
 Next
 
 Dim mean As Double
 mean = y / i
 
 Dim sum As Double
 For Each item In datarange
 sum = sum + (item - mean) ^ 2
 Next
 
 thestv = (sum / i) ^ (1 / 2)
 
 
 End Function
 
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