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Jens True
2023-08-02 13:29:14 +00:00
parent 73781e9000
commit a2c5252cf2
6 changed files with 18 additions and 19 deletions
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14
src/Numerics/GaussianDistribution.php
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@@ -63,18 +63,6 @@ class GaussianDistribution implements \Stringable
return 1.0 / (sqrt(2 * M_PI) * $this->standardDeviation);
}
public function __clone()
{
$result = new GaussianDistribution();
$result->mean = $this->mean;
$result->standardDeviation = $this->standardDeviation;
$result->variance = $this->variance;
$result->precision = $this->precision;
$result->precisionMean = $this->precisionMean;
return $result;
}
public static function fromPrecisionMean(float $precisionMean, float $precision): self
{
$result = new GaussianDistribution();
@@ -174,7 +162,7 @@ class GaussianDistribution implements \Stringable
return 0.5 * $result;
}
private static function errorFunctionCumulativeTo($x): float
private static function errorFunctionCumulativeTo(float $x): float
{
// Derived from page 265 of Numerical Recipes 3rd Edition
$z = abs($x);