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Sigma KEE - VarianceFn

appearance as argument number 1

(documentation VarianceFn ChineseLanguage "这是一个 UnaryFunction, 他算出一个序列(List) 的方差。数值方差计算总体数值。") Weather.kif 1468-1468
(documentation VarianceFn EnglishLanguage "It is a UnaryFunction to return the variance given a List of numbers. The numerical variance computates over values in an entire population.") Weather.kif 1466-1467
(domain VarianceFn 1 List) Weather.kif 1469-1469 The number 1 argument of variance function is an instance of list
(instance VarianceFn UnaryFunction) Weather.kif 1470-1470 Variance function is an instance of unary function
(range VarianceFn Number) Weather.kif 1472-1472 The range of variance function is an instance of number

appearance as argument number 2

(format EnglishLanguage VarianceFn "The VarianceFn %1") Weather.kif 1471-1471
(termFormat ChineseLanguage VarianceFn "方差函数") domainEnglishFormat.kif 27842-27842
(termFormat EnglishLanguage VarianceFn "variance function") domainEnglishFormat.kif 27841-27841


        (equal ?V
            (VarianceFn ?L))
        (equal ?M
            (AverageFn ?L)))
    (equal ?V
            (VarianceAverageFn ?M ?L)
            (ListLengthFn ?L))))
Weather.kif 1474-1483


    (equal ?SD
        (StandardDeviationFn ?L))
    (equal ?SD
            (VarianceFn ?L))))
Weather.kif 1507-1512 A real number is equal to The StandardDeviationFn of a list if and only if the real number is equal to the squareRoot of The VarianceFn the list

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