Summing large numbers...

  • Thread starter Thread starter Buildscharacter
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Buildscharacter

I have a worksheet that has 2 collumns. The first collumn is just th
numerical order of each person (survey data). So it's simply 1, 2, 3
4, 5...etc. Nothing crazy.
The collomn next to it is the results of the survey. It's simple dat
(.123, .456, .789). My problem is that each of the numerical orders ha
quite a few data points. So number 1 may have 5-6 sets of data in th
2nd collumn. So it looks like this

1 .123
1 .342
1 .425
1 .345
2 .123
2 .654
2 .346
3 .264
3 .346

There are probably around 65,000 data points so I was not about t
manually go and sum them. Is there a way that I can sum the data in th
2nd collumn for each "group"? Thanks
 
Are these numbers sorted the way they are in your example so all numbers
that are the same are grouped together
If so you can use data>subtotals although 65000 sounds like an awful lot and
of course if there are too many different people the subtotal will not work
since it would use up more space than excel provides

If not sorted you can use SUMIF

=SUMIF(A:A,1,B:B)

--
Regards,

Peo Sjoblom

(No private emails please)


"Buildscharacter"
 
Hi

Use pivot table (Data>Pivot Table and ...). The row value will be first
column, data value will be the sum of 2nd column, Options determine, ar
grand totals calculated or not.


Arvi Laanemets



"Buildscharacter"
 
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