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--TEST-- stats_dens_t() --FILE-- <?php // check foreach x foreach (range(-1, 1, 0.5) as $x) { var_dump(round(stats_dens_t($x, 1), 6)); } // check foreach dfr foreach (range(0.5, 2, 0.5) as $dfr) { var_dump(round(stats_dens_t(0, $dfr), 6)); } // error cases var_dump(stats_dens_t(1, 0)); // dfr == 0 ?> --EXPECTF-- float(0.159155) float(0.254648) float(0.31831) float(0.254648) float(0.159155) float(0.269676) float(0.31831) float(0.340735) float(0.353553) Warning: stats_dens_t(): dfr == 0.0 in %s on line %d bool(false)