stats_dens_t

(PECL stats >= 1.0.0)

stats_dens_t — Probability density function of the t-distribution

说明

stats_dens_t(float $x, float $dfr): float

Returns the probability density at x, where the random variable follows the t-distribution of which the degree of freedom is dfr.

参数

x: The value at which the probability density is calculated
dfr: The degree of freedom of the distribution

返回值

The probability density at x or false for failure.

发现了问题？

了解如何改进此页面 • 提交拉取请求 • 报告一个错误

＋添加备注

用户贡献的备注 1 note

down

Anonymous ¶

15 years ago

This function returns the value of a student-T-distribution with the total area of 1.
$dfr are the degrees of freedom for that distribution (aka k)
$x is the X-Value for which the value should be returned