Sum.if date is in an interval...

[Mikael Lindqvist]

This may sound easy, and I thought it would be easy, but after som thought I
realize that what I'm trying to do probably requires a bit of hard-thinking.

I have got a table that I exported from my database (Access) and it has 3
columns (call this list1)

1. Date1
2. Date2
3. A value

Now, I have created another column with dates (in chronological order),
ranging from 2005-01-01 to 2007-10-31 (call this list2) and I want - for each
of this dates - to have a SUM of all values THAT have the date in their
interval (interval between Date1 and Date2).

So, for my first date in list2: "2005-01-01" I want to have a total sum of
all values in list1 where "2005-01-01" is between Date1 and Date2.

And so on for rest of the dates in list2 (2005-01-02 -- 2007-10-31).

(I really need this for a much promised and anticipated report analyzing our
sales, so all help is MUCH appreciated)

Cheers,
Mikael

(This is cross-posted in Excel programming)

 

[Bernard Liengme]

I made up a List1 in A1:C10, and a list of dates for List2 in F1:F5
In G1 I used the formula
=SUMPRODUCT(--($A$1:$A$10<=F1),--($B$1:$B$10>=F1),$C$1:$C$10)
I copied this down to G5
Not tested with much data but seems OK
You lists will be longer so use formula in the form
=SUMPRODUCT(--($A$1:$A$3000<=F1),.....
It CANNOT be used with full-columns =SUMPRODUCT(--(A:A<=F1)......
For more on SUMPRODUCT see
http://www.xldynamic.com/source/xld.SUMPRODUCT.html
http://mcgimpsey.com/excel/formulae/doubleneg.html
best wishes

 

[Mikael Lindqvist]

This works like a charm.

Now I just want to calcluate the number of occurances of a string in column
D (e.g., the number of times "Apples, Oranges") are listed in the column.

That is, same setting, but instead of summing numbers I need a similar
function, but that is counting a particular string.

Is that doable?

Kindly,
Mikael

 

[Stephen]

Instead of two criteria and one data, just use three criteria, such as
=SUMPRODUCT(--($A$1:$A$10<=F1),--($B$1:$B$10>=F1),--($D$1:$D$10="Apples"))

 

[Mikael Lindqvist]

Yes, that's what I tried first, but I tried to count the letters A, B, C and
D. And this was not working, maybe letters are reserved?

Anyhow, thanks a lot for invaluable help! :>

Cheers,
Mikael

 

[Mikael Lindqvist]

This is really odd but I can't the formula to work for columns bigger than
approximately 5000 rows.

Anyone else aware of this limit and how to get round it?

Regards,
Mikael

 

[Mikael Lindqvist]

Duh, for some reason I had a "#missing!" value in my column and that appeared
in row 6780... so, please ignore my previous post!

//Mikael