ilTestStatistics Class Reference

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 ($eval_data)
	ilTestStatistics constructor
	getStatistics ()
	Returns the statistics object.
	calculateStatistics ($eval_data)
	Instanciates the statistics object.

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 36 of file class.ilTestStatistics.php.

Member Function Documentation

ilTestStatistics::calculateStatistics

(

$eval_data

)

Instanciates the statistics object.

private

See Also

$statistics

Definition at line 73 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

object ilStatistics object public

See Also

$statistics

Definition at line 62 of file class.ilTestStatistics.php.

References $statistics.

        {
                return $this->statistics;
        }

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 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.

Referenced by getStatistics().

ilTestStatistics::$test_id

Definition at line 38 of file class.ilTestStatistics.php.

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

• Modules/Test/classes/class.ilTestStatistics.php