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ArtOfWarfare
Mar 27, 2013, 08:56 AM
I don't normally consider using Excel or Numbers to be programming but I know other people do and I feel like this might be beyond the people who frequent the other sections of the forums so here goes.

I want to be able to write a simple spreadsheet for calculating my grade in a class that has the following 3 input columns:

A: Names for all my assignments
B: The grades I got on each assignment
C: A list of weights

Now here's where it gets a bit confusing: The weight and grade in a given row aren't necessarily related to each other. Instead, the highest grade in column B gets the highest weight in column C, the second highest grade in column C gets the second highest weight in column C, and so on. I don't want the table sorted automatically by any column (I'll manually drag stuff around as necessary.)

I want an output column D which contains B, from the same row, multiplied by the correct value from C, as described in the preceding paragraph.

Does anyone know how I can do this in Numbers? I've looked up and down the available functions nothing is jumping out at me.

Edit: Naturally, it's right when I post the question after weeks of searching that an idea comes to me...

I see there's a RANK function and an INDEX function... I feel like between these two things I almost have an answer...

Actually, never mind, I just found an even more obvious function, LARGE...

D = B * LARGE(C:, RANK(B, B:, TRUE))

Now I just need to remember how exactly formatting equations works and this will be totally solved...

Edit 2X:

All done! Here's what the properly formatted formula looks like:

= (Scored Set 1) * LARGE((Available Weights), RANK((Scored Set 1), (Scored)))

It seems that getting the value from a specific cell in the same row of a different column is just (<Column Name> <Row Name>) and getting all the values from a specific column is just (<Column Name>).

Edit 3X:

Actually... it's not quite done yet... given multiple scores of equal value, it'll consider them to have the same rank, and so a single weight could be used multiple times. I may have to hack together a solution...