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ChiSquared:: (11 methods):
distributionRightTail()
distributionLeftTail()
inverseRightTail()
inverseLeftTail()
test()
degrees()
inverseLeftTailCalculation()
pchisq()
gammp()
gser()
gcf()
Class: ChiSquared - X-Ref
distributionRightTail($value, $degrees) X-Ref |
CHIDIST. Returns the one-tailed probability of the chi-squared distribution. return: float|string param: mixed $value Float value for which we want the probability param: mixed $degrees Integer degrees of freedom |
distributionLeftTail($value, $degrees, $cumulative) X-Ref |
CHIDIST. Returns the one-tailed probability of the chi-squared distribution. return: float|string param: mixed $value Float value for which we want the probability param: mixed $degrees Integer degrees of freedom param: mixed $cumulative Boolean value indicating if we want the cdf (true) or the pdf (false) |
inverseRightTail($probability, $degrees) X-Ref |
CHIINV. Returns the inverse of the right-tailed probability of the chi-squared distribution. return: float|string param: mixed $probability Float probability at which you want to evaluate the distribution param: mixed $degrees Integer degrees of freedom |
inverseLeftTail($probability, $degrees) X-Ref |
CHIINV. Returns the inverse of the left-tailed probability of the chi-squared distribution. return: float|string param: mixed $probability Float probability at which you want to evaluate the distribution param: mixed $degrees Integer degrees of freedom |
test($actual, $expected) X-Ref |
CHITEST. Uses the chi-square test to calculate the probability that the differences between two supplied data sets (of observed and expected frequencies), are likely to be simply due to sampling error, or if they are likely to be real. return: float|string param: mixed $actual an array of observed frequencies param: mixed $expected an array of expected frequencies |
degrees(int $rows, int $columns) X-Ref |
No description |
inverseLeftTailCalculation(float $probability, int $degrees) X-Ref |
No description |
pchisq($chi2, $degrees) X-Ref |
No description |
gammp($n, $x) X-Ref |
No description |
gser($n, $x) X-Ref |
No description |
gcf($n, $x) X-Ref |
No description |