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- <?php
- //
- // +----------------------------------------------------------------------+
- // | PHP Version 4 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997-2003 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This source file is subject to version 2.0 of the PHP license, |
- // | that is bundled with this package in the file LICENSE, and is |
- // | available at through the world-wide-web at |
- // | http://www.php.net/license/2_02.txt. |
- // | If you did not receive a copy of the PHP license and are unable to |
- // | obtain it through the world-wide-web, please send a note to |
- // | license@php.net so we can mail you a copy immediately. |
- // +----------------------------------------------------------------------+
- // | Authors: Jesus M. Castagnetto <jmcastagnetto@php.net> |
- // +----------------------------------------------------------------------+
- //
- // $Id: ex_stats_cummulative_data.php,v 1.3 2003/01/04 11:55:39 mj Exp $
- //
-
- /**
- * @package Math_Stats
- */
-
- require_once "Math/Stats.php";
-
- // making some cummulative data sets
-
- $data = array("3"=>4, "2.333"=>5, "1.22"=>6, "0.5"=>3, "0.9"=>2, "2.4"=>7);
- $dnulls = array("3"=>4, "caca"=>2, "bar is not foo"=>6, "0.5"=>3, "0.9"=>2, "2.4"=>7);
-
- // instantiate a Math_Stats object
- $s = new Math_Stats();
- $s->setData($data, STATS_DATA_CUMMULATIVE);
-
- echo "*** Original cummulative data set\n";
- print_r($data);
- // let's print some simple statistics
- echo "Simple stats from cummulative data, note the count\n";
- print_r($s->calcBasic());
-
- // now, lets generate an error by using the $dnulls array
- echo "\n*** Another cummulative data set\n";
- print_r($dnulls);
- echo "Generating an error by using data with nulls\n";
- print_r($s->setData($dnulls, STATS_DATA_CUMMULATIVE));
-
- // let's ignore nulls
- echo "Ignoring the nulls and trying again\n";
- $s->setNullOption(STATS_IGNORE_NULL);
- $s->setData($dnulls, STATS_DATA_CUMMULATIVE);
- print_r($s->calcBasic());
-
- // let's assume null == zero
- echo "Assuming that nulls are zero\n";
- $s->setNullOption(STATS_USE_NULL_AS_ZERO);
- $s->setData($dnulls, STATS_DATA_CUMMULATIVE);
- print_r($s->calcFull());
- ?>
-