Procedural File: Stats.php

filesource:

Source Code for this file

include_once('PEAR.php') [line 22]

STATS_BASIC = 1

STATS_BASIC to generate the basic descriptive statistics

STATS_DATA_CUMMULATIVE = 1

STATS_DATA_CUMMULATIVE for an associative array of frequency values,

where in each array entry, the index is the data point and the value the count (frequency): e.g. $data = array(3=>4, 2.3=>5, 1.25=>6, 0.5=>3)

STATS_DATA_SIMPLE = 0

STATS_DATA_SIMPLE for an array of numeric values. This is the default.

e.g. $data = array(2,3,4,5,1,1,6);

STATS_FULL = 2

STATS_FULL to generate also higher moments, mode, median, etc.

STATS_IGNORE_NULL = -2

STATS_IGNORE_NULL, ignore null values and prune them from the data.

Any non-numeric value is considered a null in this context.

STATS_REJECT_NULL = -1

STATS_REJECT_NULL, reject data sets with null values. This is the default.

Any non-numeric value is considered a null in this context.

STATS_USE_NULL_AS_ZERO = -3

STATS_USE_NULL_AS_ZERO, assign the value of 0 (zero) to null values.

Any non-numeric value is considered a null in this context.