C:/xampp/htdocs/moodle/mod/quiz/report/statistics/statistics_graph.php File Reference

Go to the source code of this file.

Namespaces
namespace	quiz
Functions
	graph_get_new_colour ()
Variables
	$quizstatisticsid = required_param('id', PARAM_INT)
	$quizstatistics = $DB->get_record('quiz_statistics', array('id' => $quizstatisticsid))
	$quiz = $DB->get_record('quiz', array('id' => $quizstatistics->quizid), '*', MUST_EXIST)
	$cm = get_coursemodule_from_instance('quiz', $quiz->id)
	$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id)
	$questionstatistics
	$graph = new graph(800, 600)
$graph	parameter ['title'] = ''
$graph	parameter ['y_label_left'] = '%'
$graph	parameter ['x_label'] = get_string('position', 'quiz_statistics')
$graph	parameter ['y_label_angle'] = 90
$graph	parameter ['x_label_angle'] = 0
$graph	parameter ['x_axis_angle'] = 60
$graph	parameter ['legend'] = 'outside-right'
$graph	parameter ['legend_border'] = 'black'
$graph	parameter ['legend_offset'] = 4
$graph	parameter ['bar_size'] = 1
$graph	parameter ['zero_axis'] = 'grayEE'
	$fieldstoplot
	$fieldstoplotfactor = array('facility' => 100, 'discriminativeefficiency' => 1)
	$xdata = array()
$graph	x_data = array_values($xdata)
foreach($fieldstoplot as $fieldtoplot=> $notused) $graph	y_order = array_keys($fieldstoplot)
	$max = 0
	$min = 0
foreach($fieldstoplot as $fieldtoplot=> $notused)	$gridresolution = 10
	$gridlines = ceil(($max - $min) / $gridresolution) + 1
$graph	parameter ['y_axis_gridlines'] = $gridlines
$graph	parameter ['y_min_left'] = $min
$graph	parameter ['y_max_left'] = $max
$graph	parameter ['y_decimal_left'] = 0

---

Function Documentation

graph_get_new_colour

(

)

This helper function returns a sequence of colours each time it is called. Used for chooseing colours for graph data series.

Returns:

string colour name.

Definition at line 44 of file statistics_graph.php.

---

Variable Documentation

$cm = get_coursemodule_from_instance('quiz', $quiz->id)

Definition at line 61 of file statistics_graph.php.

$fieldstoplot

Initial value:

 array(
    'facility' => get_string('facility', 'quiz_statistics'),
    'discriminativeefficiency' => get_string('discriminative_efficiency', 'quiz_statistics')
)

Definition at line 101 of file statistics_graph.php.

$fieldstoplotfactor = array('facility' => 100, 'discriminativeefficiency' => 1)

Definition at line 105 of file statistics_graph.php.

$graph = new graph(800, 600)

Definition at line 83 of file statistics_graph.php.

$gridlines = ceil(($max - $min) / $gridresolution) + 1

Definition at line 157 of file statistics_graph.php.

foreach ($fieldstoplot as $fieldtoplot=> $notused) $gridresolution = 10

Definition at line 154 of file statistics_graph.php.

$max = 0

Definition at line 146 of file statistics_graph.php.

$min = 0

Definition at line 147 of file statistics_graph.php.

$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id)

Definition at line 65 of file statistics_graph.php.

$questionstatistics

Initial value:

 $DB->get_records_select('quiz_question_statistics',
        'quizstatisticsid = ? AND slot IS NOT NULL', array($quizstatistics->id))

Definition at line 79 of file statistics_graph.php.

$quiz = $DB->get_record('quiz', array('id' => $quizstatistics->quizid), '*', MUST_EXIST)

Definition at line 60 of file statistics_graph.php.

$quizstatistics = $DB->get_record('quiz_statistics', array('id' => $quizstatisticsid))

Definition at line 59 of file statistics_graph.php.

$quizstatisticsid = required_param('id', PARAM_INT)

Definition at line 56 of file statistics_graph.php.

$xdata = array()

Definition at line 108 of file statistics_graph.php.

$graph parameter['title'] = ''

Definition at line 84 of file statistics_graph.php.

$graph parameter['y_label_left'] = '%'

Definition at line 86 of file statistics_graph.php.

$graph parameter['x_label'] = get_string('position', 'quiz_statistics')

Definition at line 87 of file statistics_graph.php.

$graph parameter['y_label_angle'] = 90

Definition at line 88 of file statistics_graph.php.

$graph parameter['x_label_angle'] = 0

Definition at line 89 of file statistics_graph.php.

$graph parameter['x_axis_angle'] = 60

Definition at line 90 of file statistics_graph.php.

$graph parameter['legend'] = 'outside-right'

Definition at line 92 of file statistics_graph.php.

$graph parameter['legend_border'] = 'black'

Definition at line 93 of file statistics_graph.php.

$graph parameter['legend_offset'] = 4

Definition at line 94 of file statistics_graph.php.

$graph parameter['bar_size'] = 1

Definition at line 96 of file statistics_graph.php.

$graph parameter['zero_axis'] = 'grayEE'

Definition at line 98 of file statistics_graph.php.

$graph parameter['y_axis_gridlines'] = $gridlines

Definition at line 159 of file statistics_graph.php.

$graph parameter['y_min_left'] = $min

Definition at line 161 of file statistics_graph.php.

$graph parameter['y_max_left'] = $max

Definition at line 162 of file statistics_graph.php.

$graph parameter['y_decimal_left'] = 0

Definition at line 163 of file statistics_graph.php.

$graph x_data = array_values($xdata)

Definition at line 137 of file statistics_graph.php.

foreach ($fieldstoplot as $fieldtoplot=> $notused) $graph y_order = array_keys($fieldstoplot)

Definition at line 143 of file statistics_graph.php.