--TEST--
stats_cdf_cauchy()
--FILE--
<?php
// which = 1 : calculate P from (X, MEAN, SD)
var_dump(round(stats_cdf_cauchy(1, 2, 3, 1), 6));
var_dump(round(stats_cdf_cauchy(6, 5, 4, 1), 6));

// which = 2 : calculate X from (P, MEAN, SD)
var_dump(round(stats_cdf_cauchy(0.397583618, 2, 3, 2), 6));
var_dump(round(stats_cdf_cauchy(0.57797913, 5, 4, 2), 6));

// which = 3 : calculate MEAN from (P, X, SD)
var_dump(round(stats_cdf_cauchy(0.397583618, 1, 3, 3), 6));
var_dump(round(stats_cdf_cauchy(0.57797913, 6, 4, 3), 6));

// which = 4 : calculate SD from (P, X, MEAN)
var_dump(round(stats_cdf_cauchy(0.397583618, 1, 2, 4), 6));
var_dump(round(stats_cdf_cauchy(0.57797913, 6, 5, 4), 6));

// error cases
var_dump(stats_cdf_cauchy(1, 2, 3, 0)); // which < 1
var_dump(stats_cdf_cauchy(1, 2, 3, 5)); // which > 4
?>
--EXPECTF--
float(0.397584)
float(0.577979)
float(1)
float(6)
float(2)
float(5)
float(3)
float(4)

Warning: stats_cdf_cauchy(): Fourth parameter should be in the 1..4 range in %s on line %d
bool(false)

Warning: stats_cdf_cauchy(): Fourth parameter should be in the 1..4 range in %s on line %d
bool(false)