sumproduct, fix one array

Question

I have two columns I do the sumproduct operation on them this way:

=SUMPRODUCT(I37:I61, **D37:D61**)

and it works perfectly well - I put the result in the cell I8

but when I copy this function to cell J8

it transfers to:

=SUMPRODUCT(J37:J61, **E37:E61**)

I want TO FIX one array, so my function would look like

=SUMPRODUCT(J37:J61, D37:D61)

I hope it's clear what do I want to achieve :)

are there any ways to do so?

Answer 1

Not sure about google spreadsheet, but in microsoft Excel you would need to use below formula for ur use. I think same will work in Google Spreadsheet too.

=SUMPRODUCT(I37:I61, $D37:$D61)

Notice '$' which says not to translate D when you do copy-paste.

Answer 2

I would used named ranges to avoid any confusion. Here are the steps 1) Select the range D37:D61 2) give the name a range by tying in a name to the left hand side of the fx near where you insert the formula 3) let's call that range DATA1 4) then use the formula =SUMPRODUCT(I37:I61, DATA1) 5) when you copy this formula over to next cells it should show as =SUMPRODUCT(J37:J61, DATA1)

Let me know how you get on.