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

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Defines 1 class

LogNormal:: (3 methods):
  cumulative()
  distribution()
  inverse()


Class: LogNormal  - X-Ref

cumulative($value, $mean, $stdDev)   X-Ref
LOGNORMDIST.

Returns the cumulative lognormal distribution of x, where ln(x) is normally distributed
with parameters mean and standard_dev.

param: mixed $value Float value for which we want the probability
param: mixed $mean Mean value as a float
param: mixed $stdDev Standard Deviation as a float
return: array|float|string The result, or a string containing an error

distribution($value, $mean, $stdDev, $cumulative = false)   X-Ref
LOGNORM.DIST.

Returns the lognormal distribution of x, where ln(x) is normally distributed
with parameters mean and standard_dev.

param: mixed $value Float value for which we want the probability
param: mixed $mean Mean value as a float
param: mixed $stdDev Standard Deviation as a float
param: mixed $cumulative Boolean value indicating if we want the cdf (true) or the pdf (false)
return: array|float|string The result, or a string containing an error

inverse($probability, $mean, $stdDev)   X-Ref
LOGINV.

Returns the inverse of the lognormal cumulative distribution

param: mixed $probability Float probability for which we want the value
param: mixed $mean Mean Value as a float
param: mixed $stdDev Standard Deviation as a float
return: array|float|string The result, or a string containing an error