public function print_analysed($item, $itemnr = '', $groupid = false, $courseid = false) {
$values = evaluation_get_group_values($item, $groupid, $courseid);
if ($values) {
echo '<tr><th colspan="2" align="left">';
echo $itemnr.' ('.$item->label.') '.$item->name;
echo '</th></tr>';
foreach ($values as $value) {
echo '<tr><td colspan="2" valign="top" align="left">';
echo '- '.str_replace("\n", '<br />', $value->value);
echo '</td></tr>';
}
}
}
public function get_analysed($item, $groupid = false, $courseid = false) {
$analysed_item = array();
$analysed_item[] = $item->typ;
$analysed_item[] = $item->name;
//die moeglichen Antworten extrahieren
$info = $this->get_info($item);
$lines = null;
$lines = explode (EVALUATION_MULTICHOICERATED_LINE_SEP, $info->presentation);
if (!is_array($lines)) {
return null;
}
//die Werte holen
$values = evaluation_get_group_values($item, $groupid, $courseid, $this->ignoreempty($item));
if (!$values) {
return null;
}
//schleife ueber den Werten und ueber die Antwortmoeglichkeiten
$analysed_answer = array();
$sizeoflines = count($lines);
for ($i = 1; $i <= $sizeoflines; $i++) {
$item_values = explode(EVALUATION_MULTICHOICERATED_VALUE_SEP, $lines[$i-1]);
$ans = new stdClass();
$ans->answertext = $item_values[1];
$avg = 0.0;
$anscount = 0;
foreach ($values as $value) {
//ist die Antwort gleich dem index der Antworten + 1?
if ($value->value == $i) {
$avg += $item_values[0]; //erst alle Werte aufsummieren
$anscount++;
}
}
$ans->answercount = $anscount;
$ans->avg = doubleval($avg) / doubleval(count($values));
$ans->value = $item_values[0];
$ans->quotient = $ans->answercount / count($values);
$analysed_answer[] = $ans;
}
$analysed_item[] = $analysed_answer;
return $analysed_item;
}
public function get_analysed($item, $groupid = false, $courseid = false) {
global $DB;
$analysed = new stdClass();
$analysed->data = array();
$analysed->name = $item->name;
$values = evaluation_get_group_values($item, $groupid, $courseid);
$avg = 0.0;
$counter = 0;
if ($values) {
$data = array();
foreach ($values as $value) {
if (is_numeric($value->value)) {
$data[] = $value->value;
$avg += $value->value;
$counter++;
}
}
$avg = $counter > 0 ? $avg / $counter : 0;
$analysed->data = $data;
$analysed->avg = $avg;
}
return $analysed;
}
public function get_analysed($item, $groupid = false, $courseid = false) {
$info = $this->get_info($item);
$analysed_item = array();
$analysed_item[] = $item->typ;
$analysed_item[] = $item->name;
//get the possible answers
$answers = null;
$answers = explode (EVALUATION_MULTICHOICE_LINE_SEP, $info->presentation);
if (!is_array($answers)) {
return null;
}
//get the values
$values = evaluation_get_group_values($item, $groupid, $courseid, $this->ignoreempty($item));
if (!$values) {
return null;
}
//get answertext, answercount and quotient for each answer
$analysed_answer = array();
if ($info->subtype == 'c') {
$sizeofanswers = count($answers);
for ($i = 1; $i <= $sizeofanswers; $i++) {
$ans = new stdClass();
$ans->answertext = $answers[$i-1];
$ans->answercount = 0;
foreach ($values as $value) {
//ist die Antwort gleich dem index der Antworten + 1?
$vallist = explode(EVALUATION_MULTICHOICE_LINE_SEP, $value->value);
foreach ($vallist as $val) {
if ($val == $i) {
$ans->answercount++;
}
}
}
$ans->quotient = $ans->answercount / count($values);
$analysed_answer[] = $ans;
}
} else {
$sizeofanswers = count($answers);
for ($i = 1; $i <= $sizeofanswers; $i++) {
$ans = new stdClass();
$ans->answertext = $answers[$i-1];
$ans->answercount = 0;
foreach ($values as $value) {
//ist die Antwort gleich dem index der Antworten + 1?
if ($value->value == $i) {
$ans->answercount++;
}
}
$ans->quotient = $ans->answercount / count($values);
$analysed_answer[] = $ans;
}
}
$analysed_item[] = $analysed_answer;
return $analysed_item;
}