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/lib/phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Statistical/ -> Deviations.php (source)

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Defines 1 class

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[, ...]])

param: mixed ...$args Data values
return: float|string

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.

param: array ...$args Data Series
return: float|string

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.

param: array ...$args Data Series
return: float|int|string The result, or a string containing an error