Crap title but I couldn't think howelse to explain it......
As you may tell I'm new to these forums and wondered if anyone could help.
I have a table let's say 5 columns wide and 5 rows long.
In column 1 I have a 'materials type' and in column 5 I have a 'weight'
What I want to do is look down column 1 and where a 'materials type' of a given value e.g. 'plastics' occurs take the corresponding value in column 5. I want to do this for all 5 rows until I've added up all the weights in column 5 that correspond to a materials type in column 1 of 'plastics'. This way I get the total weight of palstics in the table.
Is there a function or combination of functions to help with this?
Many thanks.
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