Custom value sum for selection

Question

Hello

I have a new requirement for my questionnaire, where selection answers should have different points than the default ones. The valueSum() simply sums the default values (1,2,3,4,5).

What would be the simplest way to sum values so that custom values (i.e. 1.3, 1.8, 2.9, 4.4, 5) for each option would be applied.

Only way I could figure out is to use value() for each question separately and then use the custom multiplier(s) for the result. But just makes me think that maybe there is some easier way because valueSum() returns float according to documentation.

Any advices are welcome. Thanks!

Olli

Answer 1

Only way I could figure out is to use value() for each question separately and then use the custom multiplier(s) for the result.

If you use a FOR loop for that, it's not that bad. And it's probably easier than playing with frequency arrays.However, valueList() will save you at least typing the variable names.

$values = valueList('AB01');
$sum = 0;
$cnt = 0;
$recode = array(1 => 1.3, 2 => 1.8, 3 => 2.9, 4 => 4.4, 5 => 5);
foreach ($values as $value) {
  if (isset($recode[$value])) {
    $sum+= $recode[$value];
    $cnt++;
  }
}
html('<p>Sum '.$sum.'</p>');

The $cnt only comes into play, if you need a mean value and have missing data.

Comments

Thanks!

I think I just needed confirmation so that I haven't missed anything obvious.

Anyway, thanks for the code snippet, used that as a skeleton, and indeed, valueList() worked well!