(PECL stats >= 1.0.0)
stats_cdf_f — Calculates any one parameter of the F distribution given values for the others.
$par1
, float $par2
, float $par3
, int $which
)本函数还未编写文档，仅有参数列表。
par1
par2
par3
which
brjann (theat) gmail (thedot) com (2007-10-06 06:18:56)
Input and return values of stats_cdf_t depends on the $which-parameter:
<?php
function get_t_p($t, $df){
return stats_cdf_t($t, $df, 1);
}
function get_t_t($p, $df){
return stats_cdf_t($p, $df, 2);
}
function get_t_df($p, $t){
return stats_cdf_t($p, $t, 3);
}
?>