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Slowly getting rid of stringable.

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Jens True
2024-03-19 14:10:11 +00:00
parent 73ef2f45c8
commit 11fafc129a
1 changed files with 2 additions and 7 deletions
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9
src/Numerics/GaussianDistribution.php
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@ -10,7 +10,7 @@ namespace DNW\Skills\Numerics;
* @author Jeff Moser <jeff@moserware.com> * @author Jeff Moser <jeff@moserware.com>
* @copyright 2010 Jeff Moser * @copyright 2010 Jeff Moser
*/ */
class GaussianDistribution implements \Stringable class GaussianDistribution
{ {
private const DEFAULT_STANDARD_DEVIATION = 1.0; private const DEFAULT_STANDARD_DEVIATION = 1.0;
private const DEFAULT_MEAN = 0.0; private const DEFAULT_MEAN = 0.0;
@ -33,7 +33,7 @@ class GaussianDistribution implements \Stringable
private const M_LOG_SQRT_2_PI = 0.9189385332046727417803297364056176398613974736377834128171515404; private const M_LOG_SQRT_2_PI = 0.9189385332046727417803297364056176398613974736377834128171515404;
// precision and precisionMean are used because they make multiplying and dividing simpler // precision and precisionMean are used because they make multiplying and dividing simpler
// (the the accompanying math paper for more details) // (see the accompanying math paper for more details)
private float $precision = 1.0; private float $precision = 1.0;
private float $precisionMean = 0.0; private float $precisionMean = 0.0;
@ -277,9 +277,4 @@ class GaussianDistribution implements \Stringable
// From numerical recipes, page 320 // From numerical recipes, page 320
return $mean - M_SQRT2 * $standardDeviation * GaussianDistribution::inverseErrorFunctionCumulativeTo(2 * $x); return $mean - M_SQRT2 * $standardDeviation * GaussianDistribution::inverseErrorFunctionCumulativeTo(2 * $x);
} }
public function __toString(): string
{
return sprintf('mean=%.4f standardDeviation=%.4f', $this->mean, $this->standardDeviation);
}
} }