Is there a list somewhere of all the operations/functions supported in a grade calculation? In particular conditions supported (I presume all conditions simply return a number not a boolean so I can implement and/or with * and +).
In particular, I'd like to test whether a particular grade item is empty. For now I'm assuming that a zero on the final means empty and unchecking exclude empty values but this is going to break if someone gets a zero.
Also are there any operations that return the number of items in a category, the n-th lowest score in a category or the point values of items? For instance, I'd like to be able to create a formula that drops the lowest 6 scores from homework but written homework assignments count twice as much as online assignments (so you could drop 6 online assignments, 3 written, 2 written and 2 online etc..) but I'd need some kind of operation on categories to implement this.
Just being able to implement drop lowest n scores in a grade calculation would let me just create all the combinatorial possibilities (category corresponding to dropping 2 written 2 online etc..). Is there any hope of being able to implement this or am I SOL?