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Long Term Support Release

  • Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
  • Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
  • PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.

Differences Between: [Versions 400 and 401]

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Defines 1 class

Weibull:: (1 method):
  distribution()


Class: Weibull  - X-Ref

distribution($value, $alpha, $beta, $cumulative)   X-Ref
WEIBULL.

Returns the Weibull distribution. Use this distribution in reliability
analysis, such as calculating a device's mean time to failure.

param: mixed $value Float value for the distribution
param: mixed $alpha Float alpha Parameter
param: mixed $beta Float beta Parameter
param: mixed $cumulative Boolean value indicating if we want the cdf (true) or the pdf (false)
return: array|float|string (string if result is an error)