| coefficientOfDetermination(array $X, array $Y, bool $popluation=false) | MathPHP\Statistics\Correlation | static |
| confidenceEllipse(array $X, array $Y, float $z, int $num_points=11) | MathPHP\Statistics\Correlation | static |
| covariance(array $X, array $Y, bool $population=false) | MathPHP\Statistics\Correlation | static |
| describe(array $X, array $Y, bool $population=false) | MathPHP\Statistics\Correlation | static |
| kendallsTau(array $X, array $Y) | MathPHP\Statistics\Correlation | static |
| populationCorrelationCoefficient(array $X, array $Y) | MathPHP\Statistics\Correlation | static |
| populationCovariance(array $X, array $Y) | MathPHP\Statistics\Correlation | static |
| r(array $X, array $Y, bool $population=false) | MathPHP\Statistics\Correlation | static |
| r2(array $X, array $Y, bool $popluation=false) | MathPHP\Statistics\Correlation | static |
| sampleCorrelationCoefficient(array $X, array $Y) | MathPHP\Statistics\Correlation | static |
| sampleCovariance(array $X, array $Y) | MathPHP\Statistics\Correlation | static |
| spearmansRho(array $X, array $Y) | MathPHP\Statistics\Correlation | static |
| weightedCorrelationCoefficient(array $X, array $Y, array $w) | MathPHP\Statistics\Correlation | static |
| weightedCovariance(array $X, array $Y, array $w) | MathPHP\Statistics\Correlation | static |
| X (defined in MathPHP\Statistics\Correlation) | MathPHP\Statistics\Correlation | |
| Y (defined in MathPHP\Statistics\Correlation) | MathPHP\Statistics\Correlation | |
