protected function initial_question_walker($stats) {
        $stats->markaverage = $stats->totalmarks / $stats->s;

        if ($stats->maxmark != 0) {
            $stats->facility = $stats->markaverage / $stats->maxmark;
        } else {
            $stats->facility = null;
        }

        $stats->othermarkaverage = $stats->totalothermarks / $stats->s;

        $stats->summarksaverage = $stats->totalsummarks / $stats->s;

        sort($stats->markarray, SORT_NUMERIC);
        sort($stats->othermarksarray, SORT_NUMERIC);

        // Here we have collected enough data to make the decision about which questions have variants whose stats we also want to
        // calculate. We delete the initialised structures where they are not needed.
        if (!$stats->get_variants() || !$stats->break_down_by_variant()) {
            $stats->clear_variants();
        }

        foreach ($stats->get_variants() as $variant) {
            $this->initial_question_walker($stats->variantstats[$variant]);
        }
    }
protected function initial_question_walker($stats) {
        $stats->markaverage = $stats->totalmarks / $stats->s;

        if ($stats->maxmark != 0) {
            $stats->facility = $stats->markaverage / $stats->maxmark;
        } else {
            $stats->facility = null;
        }

        $stats->othermarkaverage = $stats->totalothermarks / $stats->s;

        $stats->summarksaverage = $stats->totalsummarks / $stats->s;

        sort($stats->markarray, SORT_NUMERIC);
        sort($stats->othermarksarray, SORT_NUMERIC);

        // Here we have collected enough data to make the decision about which questions have variants whose stats we also want to
        // calculate. We delete the initialised structures where they are not needed.
        if (!$stats->get_variants() || !$stats->break_down_by_variant()) {
            $stats->clear_variants();
        }

        foreach ($stats->get_variants() as $variant) {
            $this->initial_question_walker($stats->variantstats[$variant]);
        }
    }
protected function initial_question_walker ( $ stats ) { $ stats -> markaverage = $ stats -> totalmarks / $ stats -> s ; if ( $ stats -> maxmark != 0 ) { $ stats -> facility = $ stats -> markaverage / $ stats -> maxmark ; } else { $ stats -> facility = null ; } $ stats -> othermarkaverage = $ stats -> totalothermarks / $ stats -> s ; $ stats -> summarksaverage = $ stats -> totalsummarks / $ stats -> s ; sort ( $ stats -> markarray , SORT_NUMERIC ) ; sort ( $ stats -> othermarksarray , SORT_NUMERIC ) ; // Here we have collected enough data to make the decision about which questions have variants whose stats we also want to // calculate. We delete the initialised structures where they are not needed. if ( ! $ stats -> get_variants ( ) || ! $ stats -> break_down_by_variant ( ) ) { $ stats -> clear_variants ( ) ; } foreach ( $ stats -> get_variants ( ) as $ variant ) { $ this -> initial_question_walker ( $ stats -> variantstats [ $ variant ] ) ; } }
Then loop through all questions for the first time.

Perform some computations on the per-question statistics calculations after
we have been through all the step data.

@param calculated $stats question stats to update.
Then loop through all questions for the first time .