protected function col_effective_weight($questionstat) {
        global $OUTPUT;

        if ($this->is_calculated_question_summary($questionstat)) {
            list($min, $max) = $questionstat->get_min_max_of('effectiveweight');

            if (is_null($min) && is_null($max)) {
                return '';
            } else {
                list( , $negcovar) = $questionstat->get_min_max_of('negcovar');
                if ($negcovar) {
                    $min = get_string('negcovar', 'quiz_statistics');
                }

                return $this->format_range($min, $max);
            }
        } else if (is_null($questionstat->effectiveweight)) {
            return '';
        } else if ($questionstat->negcovar) {
            $negcovar = get_string('negcovar', 'quiz_statistics');

            if (!$this->is_downloading()) {
                $negcovar = html_writer::tag('div',
                        $negcovar . $OUTPUT->help_icon('negcovar', 'quiz_statistics'),
                        array('class' => 'negcovar'));
            }

            return $negcovar;
        } else {
            return $this->format_percentage($questionstat->effectiveweight, false);
        }
    }
protected function col_effective_weight($questionstat) {
        global $OUTPUT;

        if ($this->is_calculated_question_summary($questionstat)) {
            list($min, $max) = $questionstat->get_min_max_of('effectiveweight');

            if (is_null($min) && is_null($max)) {
                return '';
            } else {
                list( , $negcovar) = $questionstat->get_min_max_of('negcovar');
                if ($negcovar) {
                    $min = get_string('negcovar', 'quiz_statistics');
                }

                return $this->format_range($min, $max);
            }
        } else if (is_null($questionstat->effectiveweight)) {
            return '';
        } else if ($questionstat->negcovar) {
            $negcovar = get_string('negcovar', 'quiz_statistics');

            if (!$this->is_downloading()) {
                $negcovar = html_writer::tag('div',
                        $negcovar . $OUTPUT->help_icon('negcovar', 'quiz_statistics'),
                        array('class' => 'negcovar'));
            }

            return $negcovar;
        } else {
            return $this->format_percentage($questionstat->effectiveweight, false);
        }
    }
protected function col_effective_weight ( $ questionstat ) { global $ OUTPUT ; if ( $ this -> is_calculated_question_summary ( $ questionstat ) ) { list ( $ min , $ max ) = $ questionstat -> get_min_max_of ( 'effectiveweight' ) ; if ( is_null ( $ min ) && is_null ( $ max ) ) { return '' ; } else { list ( , $ negcovar ) = $ questionstat -> get_min_max_of ( 'negcovar' ) ; if ( $ negcovar ) { $ min = get_string ( 'negcovar' , 'quiz_statistics' ) ; } return $ this -> format_range ( $ min , $ max ) ; } } else if ( is_null ( $ questionstat -> effectiveweight ) ) { return '' ; } else if ( $ questionstat -> negcovar ) { $ negcovar = get_string ( 'negcovar' , 'quiz_statistics' ) ; if ( ! $ this -> is_downloading ( ) ) { $ negcovar = html_writer :: tag ( 'div' , $ negcovar . $ OUTPUT -> help_icon ( 'negcovar' , 'quiz_statistics' ) , array ( 'class' => 'negcovar' ) ) ; } return $ negcovar ; } else { return $ this -> format_percentage ( $ questionstat -> effectiveweight , false ) ; } }
The effective question weight. That is, an estimate of the actual
influence this question has on the student's overall mark.
@param \core_question\statistics\questions\calculated $questionstat stats for the question.
@return string contents of this table cell.
The effective question weight . That is an estimate of the actual influence this question has on the student s overall mark .