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Deviations:: (3 methods):
sumSquares()
kurtosis()
skew()
Class: Deviations - X-Ref
sumSquares(...$args) X-Ref |
DEVSQ. Returns the sum of squares of deviations of data points from their sample mean. Excel Function: DEVSQ(value1[,value2[, ...]]) return: float|string param: mixed ...$args Data values |
kurtosis(...$args) X-Ref |
KURT. Returns the kurtosis of a data set. Kurtosis characterizes the relative peakedness or flatness of a distribution compared with the normal distribution. Positive kurtosis indicates a relatively peaked distribution. Negative kurtosis indicates a relatively flat distribution. return: float|string param: array ...$args Data Series |
skew(...$args) X-Ref |
SKEW. Returns the skewness of a distribution. Skewness characterizes the degree of asymmetry of a distribution around its mean. Positive skewness indicates a distribution with an asymmetric tail extending toward more positive values. Negative skewness indicates a distribution with an asymmetric tail extending toward more negative values. return: float|int|string The result, or a string containing an error param: array ...$args Data Series |