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 1453-1453 | |
(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 1451-1452 | |
(domain VarianceFn 1 List) | Weather.kif 1454-1454 | The number 1 argument of variance function is an instance of list |
(instance VarianceFn UnaryFunction) | Weather.kif 1455-1455 | Variance function is an instance of unary function |
(range VarianceFn Number) | Weather.kif 1457-1457 | The range of variance function is an instance of number |
appearance as argument number 2 |
(format EnglishLanguage VarianceFn "The VarianceFn %1") | Weather.kif 1456-1456 | |
(termFormat ChineseLanguage VarianceFn "方差函数") | domainEnglishFormat.kif 27885-27885 | |
(termFormat EnglishLanguage VarianceFn "variance function") | domainEnglishFormat.kif 27884-27884 |
antecedent |
(=> (and (equal ?V (VarianceFn ?L)) (equal ?M (AverageFn ?L))) (equal ?V (DivisionFn (VarianceAverageFn ?M ?L) (ListLengthFn ?L)))) |
Weather.kif 1459-1468 |
|
consequent |
(<=> (equal ?SD (StandardDeviationFn ?L)) (equal ?SD (SquareRootFn (VarianceFn ?L)))) |
Weather.kif 1492-1497 | 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 |