This class calculates statistical data for a test which has to be calculated using all participant datasets (like the median). More...

Collaboration diagram for ilTestStatistics:

Public Member Functions
	ilTestStatistics ($eval_data)
	ilTestStatistics constructor More...

	getStatistics ()
	Returns the statistics object. More...

	calculateStatistics ($eval_data)
	Instanciates the statistics object. More...

Data Fields
	$test_id

	$statistics

Detailed Description

This class calculates statistical data for a test which has to be calculated using all participant datasets (like the median).

Author: Helmut Schottmüller helmu.nosp@m.t.sc.nosp@m.hottm.nosp@m.uell.nosp@m.er@ma.nosp@m.c.co.nosp@m.m

Version: $Id$

Definition at line 16 of file class.ilTestStatistics.php.

Member Function Documentation

◆ calculateStatistics()

ilTestStatistics::calculateStatistics ( $eval_data )

Instanciates the statistics object.

@access private

See also: $statistics

Definition at line 53 of file class.ilTestStatistics.php.

        {
                $median_array = array();
 
                foreach ($eval_data->getParticipantIds() as $active_id)
                {
                        $participant =& $eval_data->getParticipant($active_id);
                        array_push($median_array, $participant->getReached());
                }
 
                $this->statistics = new ilStatistics();
                $this->statistics->setData($median_array);
        }

Referenced by ilTestStatistics().

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◆ getStatistics()

ilTestStatistics::getStatistics ( )

Returns the statistics object.

Returns: object ilStatistics object @access public

See also: $statistics

Definition at line 42 of file class.ilTestStatistics.php.

        {
                return $this->statistics;
        }

References $statistics.

◆ ilTestStatistics()

ilTestStatistics::ilTestStatistics ( $eval_data )

ilTestStatistics constructor

The constructor takes the id of an existing test object

Parameters

integer $eval_data Complete test data as ilTestEvaluationData object @access public

Definition at line 29 of file class.ilTestStatistics.php.

        {
                $this->statistics = NULL;
                $this->calculateStatistics($eval_data);
        }

References calculateStatistics().

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Field Documentation

◆ $statistics

ilTestStatistics::$statistics

Definition at line 19 of file class.ilTestStatistics.php.

Referenced by getStatistics().

◆ $test_id

ilTestStatistics::$test_id

Definition at line 18 of file class.ilTestStatistics.php.

The documentation for this class was generated from the following file:

Modules/Test/classes/class.ilTestStatistics.php

Public Member Functions

Data Fields