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This commit is contained in:
Jens True 2024-05-15 07:13:01 +00:00
parent cbf03c5736
commit 82a5505438
2 changed files with 9 additions and 8 deletions
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1
src/Numerics/GaussianDistribution.php
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@ -252,7 +252,6 @@ class GaussianDistribution
private static function inverseErrorFunctionCumulativeTo(float $p): float
{
// From page 265 of numerical recipes
if ($p >= 2.0) {
return -100;
}

16
tests/TrueSkill/TruncatedGaussianCorrectionFunctionsTest.php
View File

@ -16,9 +16,8 @@ use PHPUnit\Framework\Attributes\UsesClass;
#[UsesClass(GaussianDistribution::class)]
class TruncatedGaussianCorrectionFunctionsTest extends TestCase
{
public function testVGreaterThan(): void {
public function testvGreaterThan(): void
{
// Test values taken from Ralf Herbrich's F# TrueSkill implementation
$want = 0.4181660649773850;
$tVar = 0.7495591915280050;
@ -26,7 +25,8 @@ class TruncatedGaussianCorrectionFunctionsTest extends TestCase
$this->assertEqualsWithDelta($want, TruncatedGaussianCorrectionFunctions::vExceedsMargin($tVar, $eps), 1e-6);
}
public function testWGreaterThan(): void {
public function testwGreaterThan(): void
{
// Test values taken from Ralf Herbrich's F# TrueSkill implementation
$want = 0.4619049929317120;
$tVar = 0.7495591915280050;
@ -34,7 +34,8 @@ class TruncatedGaussianCorrectionFunctionsTest extends TestCase
$this->assertEqualsWithDelta($want, TruncatedGaussianCorrectionFunctions::wExceedsMargin($tVar, $eps), 1e-6);
}
public function testVWithin(): void {
public function testvWithin(): void
{
// Test values taken from Ralf Herbrich's F# TrueSkill implementation
$want = -0.7485644072749330;
$tVar = 0.7495591915280050;
@ -42,11 +43,12 @@ class TruncatedGaussianCorrectionFunctionsTest extends TestCase
$this->assertEqualsWithDelta($want, TruncatedGaussianCorrectionFunctions::vWithinMargin($tVar, $eps), 1e-6);
}
public function testWWithin(): void {
public function testwWithin(): void
{
// Test values taken from Ralf Herbrich's F# TrueSkill implementation
$want = 0.9986734210033660;
$tVar = 0.7495591915280050;
$eps = 0.0631282276750071;
$this->assertEqualsWithDelta($want, TruncatedGaussianCorrectionFunctions::wWithinMargin($tVar, $eps), 1e-6);
$this->assertEqualsWithDelta($want, TruncatedGaussianCorrectionFunctions::wWithinMargin($tVar, $eps), 1e-6);
}
}