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Greetings Brian,

To assist I redo my example data:

Date        :Text              :A          :B
20180803:Cattle Baron:430.00:BLANK
20180805:Dischem      :BLANK     :1233.39
20180805:Checkers     :BLANK    :606.71
20180901:PNP             :2000.00   :BLANK
20181001:WW              : BLANK   :150.00

Dates are plain 8 digit numbers and the field separator is a colon.

Try =SUMPRODUCT(INT(A2:A99/100)=201809;D2:D99)

Formula worked perfectly, HATS off to you Brian.

I noticed that dragging the formula onto lower cells ie 201810 and
201811 didn't increase te INT= value so I made that equal a cell on my
summary data.

My final formula:
=SUMPRODUCT(INT($Data.$A$3:$A$30/100)=$A4,$Data.D$3:D$30) to display
it a sheet different to data

Tnx, I'll definitely be using the "INT" section alot more.


On 24 August 2018 at 15:28, Brian Barker <> wrote:
At 08:59 24/08/2018 +0200, Hylton Conacher wrote:

I have data in 4 columns titled Date:Text:A:B. A typical row example is:
20180822:PNP:blank:500.00 OR 20180822:PNP:500.00:blank

A row will only have a value in column A or B, never both on the same row.
There may be multiple rows with the same date but different Text and A or B

Example Data:
20180803:Cattle Baron:430.00:

1) How to SUM the values in column B ...

Er, that's column D, then?!

... for September i.e. 201809

That's easy: there are no such values, so the answer is zero!

Pointers and solutions GREATLY appreciated.

I'm having to guess that your date values are actually plain eight-digit
numbers; if they are date values formatted similarly, you will need to
modify my suggestion.

Try =SUMPRODUCT(INT(A2:A99/100)=201809;D2:D99)

o A2:A99 is the array of date values (as integers).
o Dividing those by 100 and taking the integral part of the result -
INT(A2:A99/100) - gives the year and month values only.
o The expression INT(A2:A99/100)=201809 then gives an array of boolean
values, TRUE for September 2018 and FALSE otherwise.
o The SUMPRODUCT function then sums the numerical products of members of the
array of boolean values and corresponding members in column D (your "B"). In
this context, the boolean values TRUE and FALSE are interpreted as 1 and 0
respectively, so September 2018 values will be included but others not.

Note: although SUMPRODUCT() handles arrays it returns a single value, so it
is not necessary to enter it as an array function.

I trust this helps.

Brian Barker

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