Need help withthe Sum of Index Match within a table

jmaka

New Member
Joined
Nov 5, 2014
Messages
7
I am fairly new to excel and am looking for help creating a formula for the table below.
The results I am looking for are stated on the bottom of the table.
what I want to do is get a better prediction of the type that will fall under each category
Some predictors are very good at knowing the outcome of certain types and not so good on others.
I want to weight the predictions by how accurate they have been in the past.
I do know how I want to do this and could do it manually, but I cannot determine how to do it on excel.
As I stated the bottom of the table lists the results I am looking for.

This is a small size portion of the table I am working with,
the full size table has 70 predictions with 45 categories.


Any help is greatly appreciated,
J Maka


Very sorry but my excel table that I pasted in here did not carry over to the post.
Anyone know what I should have done for it to show?







-- removed inline image ---
 
Last edited:

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