ilTestStatistics Class Reference

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

Public Member Functions
	ilTestStatistics ($eval_data)
	ilTestStatistics constructor
	getStatistics ()
	Returns the statistics object.
	calculateStatistics ($eval_data)
	Instanciates the statistics object.
Data Fields
	$statistics

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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 <helmut.schottmueller@mac.com>

Version:

$Id$

class.ilTestStatistics.php Assessment

Definition at line 37 of file class.ilTestStatistics.php.

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Member Function Documentation

ilTestStatistics::calculateStatistics

(

$

eval_data

)

Instanciates the statistics object.

Instanciates the statistics object

private

See also:

$statistics

Definition at line 77 of file class.ilTestStatistics.php.

Referenced by ilTestStatistics().

        {
                $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);
        }

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ilTestStatistics::getStatistics

(

)

Returns the statistics object.

Returns the statistics object

Returns:

object ilStatistics object public

See also:

$statistics

Definition at line 64 of file class.ilTestStatistics.php.

        {
                return $this->statistics;
        }

ilTestStatistics::ilTestStatistics

(

$

eval_data

)

ilTestStatistics constructor

The constructor takes the id of an existing test object

Parameters:

integer

$a_test_id Test id public

Definition at line 49 of file class.ilTestStatistics.php.

References calculateStatistics().

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

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Field Documentation

ilTestStatistics::$statistics

Definition at line 39 of file class.ilTestStatistics.php.

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

• assessment/classes/class.ilTestStatistics.php