관리-도구

편집 파일: stats_dens_normal.phpt

--TEST-- stats_dens_normal() --FILE-- <?php // check for each x foreach (range(-2, 2, 0.5) as $x) { var_dump(round(stats_dens_normal($x, 0, 1), 6)); } // check for each ave foreach (range(-2, 2, 0.5) as $ave) { var_dump(round(stats_dens_normal(1, $ave, 1), 6)); } // check for each stdev foreach (range(0.5, 2, 0.5) as $stdev) { var_dump(round(stats_dens_normal(1, 0, $stdev), 6)); } // error cases var_dump(stats_dens_normal(1, 0, 0)); // stdev == 0 ?> --EXPECTF-- float(0.053991) float(0.129518) float(0.241971) float(0.352065) float(0.398942) float(0.352065) float(0.241971) float(0.129518) float(0.053991) float(0.004432) float(0.017528) float(0.053991) float(0.129518) float(0.241971) float(0.352065) float(0.398942) float(0.352065) float(0.241971) float(0.107982) float(0.241971) float(0.212965) float(0.176033) Warning: stats_dens_normal(): stdev is 0.0 in %s on line %d bool(false)