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

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Differences Between: [Versions 400 and 401] [Versions 401 and 402] [Versions 401 and 403]

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File Size: 139 lines (5 kb)
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Defines 1 class

StudentT:: (3 methods):
  distribution()
  inverse()
  calculateDistribution()


Class: StudentT  - X-Ref

distribution($value, $degrees, $tails)   X-Ref
TDIST.

Returns the probability of Student's T distribution.

param: mixed $value Float value for the distribution
param: mixed $degrees Integer value for degrees of freedom
param: mixed $tails Integer value for the number of tails (1 or 2)
return: array|float|string The result, or a string containing an error

inverse($probability, $degrees)   X-Ref
TINV.

Returns the one-tailed probability of the chi-squared distribution.

param: mixed $probability Float probability for the function
param: mixed $degrees Integer value for degrees of freedom
return: array|float|string The result, or a string containing an error

calculateDistribution(float $value, int $degrees, int $tails)   X-Ref

return: float