Dcounting without doble counting

[Guidu]

imagine a range like this:

Actiondate volume
1-sep 2
1-sep 3
3-sep 5
5-sep 7
9-sep 6
etc

this constrains
Actiondate Actiondate

=1-sep <6-sep

I would like a function that counts the number of days between my contrain
that do not doble count de dates....in this example the answer would be 3

Thank you people very much....I am so gratefull for your help

 

[Jim Thomlinson]

Check out this link...

http://www.xldynamic.com/source/xld.SUMPRODUCT.html

 

[Bob Phillips]

Try this array formula

=SUM(--(FREQUENCY(IF((A2:A100>=--"2008-09-01")*(A2:A100<--"2008-09-06"),MATCH(A2:A100,A2:A100,0)),ROW(INDIRECT("1:"&ROWS(A2:A100))))>0))

 

[Guidu]

Jim, thanks...but I have the problem when it is on a range...and I need it to
be on a range....an limiting dates. I have counted the days in a range, but
it dobles count when a day is repeated. my formula was like this:

=DCOUNT(ECXCFIFUT, "Total Volume", $H$52:$I$53)
where h52-i53 is the date conditional. and total volume is what I wanted to
count...I could replace total volume with action date in the example of my
original question. and with the date conditional...the answer would be 4
instead of 3 because 1-sep would be double counted.


I was trying to use "match" and "frequency" but I could't do it
thanks

 

[muddan madhu]

try this

col A has action date

in cell B1 you have 01-sep
in cell C1 you have 06-sep

in D1 put this formula =SUMPRODUCT(((A1:A5>=B1)*(A1:A5<C1))/
COUNTIF(A1:A5,A1:A5&""))

 

[Guidu]

sorry people...i can not do it.....
this is exactly what i have,

DBASE CRITERIA (I am using this already..i don´t want to make the same table
without the signs >= and<)

ActionDate ActionDate

=1/1/2005 <2/1/2005

ActionDate ActionDate

=2/1/2005 <3/1/2005

ActionDate ActionDate

=3/1/2005 <4/1/2005

ActionDate ActionDate

=4/1/2005 <5/1/2005

ActionDate ActionDate

=5/1/2005 <6/1/2005

ActionDate ActionDate

=6/1/2005 <7/1/2005

ActionDate ActionDate

=7/1/2005 <8/1/2005

ActionDate ActionDate

=8/1/2005 <9/1/2005

ActionDate ActionDate

=9/1/2005 <10/1/2005

ActionDate ActionDate

=10/1/2005 <11/1/2005

ActionDate ActionDate

=11/1/2005 <12/1/2005

ActionDate ActionDate

=12/1/2005 <1/1/2006

Then I have a really BIG range. with 15-20 columns...that i don't care for
this case. I have to do this for 4 years ...every month.

imagine range RANGEDATA, that has on one column ActionDate. I want to count
the days in every single month separately without doble counting.


Thanks everyone...I am really trying, but it seems I am not good enought