stats_cdf_binomial

(PECL stats >= 1.0.0)

stats_cdf_binomial — Calculates any one parameter of the binomial distribution given values for the others

説明

stats_cdf_binomial(
    float $par1,
    float $par2,
    float $par3,
    int $which
): float

Returns the cumulative distribution function, its inverse, or one of its parameters, of the binomial distribution. The kind of the return value and parameters (par1, par2, and par3) are determined by which.

The following table lists the return value and parameters by which. CDF, x, n, and p denotes cumulative distribution function, the number of successes, the number of trials, and the success rate for each trial, respectively.

**Return value and parameters**
`which`	Return value	`par1`	`par2`	`par3`
1	CDF	x	n	p
2	x	CDF	n	p
3	n	x	CDF	p
4	p	x	CDF	n

パラメータ

par1: The first parameter
par2: The second parameter
par3: The third parameter
which: The flag to determine what to be calculated

戻り値

Returns CDF, x, n, or p, determined by which.

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