The "IF" function needs a "value if false".......

The IF function does not need a value_if_false argument.

This is the formula I'm trying but is not working.
=SUM(N(FREQUENCY(IF((A33:A2006=$C$5-CHOOSE(WEEKDAY($C$5),0,1,2,3,4,5,6))*(A33:A2006<$C $5-CHOOSE(WEEKDAY($C$5),0,1,2,3,4,5,6)+7)*(B33:B2006= "5055"),MATCH(C33:C2006,C33:C2006,0)),MATCH(C33:C2 006,C33:C2006,0))0)

(B33:B2006="5055")

Should be:

(B33:B2006="A5055")

Based on the snippet of data you posted (not knowing what date you have
entered in C5)......

See this screencap:

http://img119.imageshack.us/img119/2631/sample6vq.jpg

Biff

"Vegs" wrote in message
...
How would I change the equation below to count the S/N (excluding
duplicates)
in column "C". Using the P/N in column "B". Here is the spreadsheet I'm
working with.
The formula I'm currently trying is listed after the spreadsheet.

=SUMPRODUCT(--($A$33:$A$2006=$C$5-CHOOSE(WEEKDAY($C$5),0,1,2,3,4,5,6)),--($A$33:$A$2006<$C$5-CHOOSE(WEEKDAY($C$5),0,1,2,3,4,5,6)+7),--($B$33:$B$2006="A5055")

Date P/N S/N
6/26/2006 A5055 1234
6/26/2006 A5055 4321
6/27/2006 A5055 1212
6/28/2006 A5055 1212
6/28/2006 A5055 2121

This is the formula I'm trying but is not working.
=SUM(N(FREQUENCY(IF((A33:A2006=$C$5-CHOOSE(WEEKDAY($C$5),0,1,2,3,4,5,6))*(A33:A2006<$C $5-CHOOSE(WEEKDAY($C$5),0,1,2,3,4,5,6)+7)*(B33:B2006= "5055"),MATCH(C33:C2006,C33:C2006,0)),MATCH(C33:C2 006,C33:C2006,0))0)


"Vegs" wrote:

Hi Biff,

I'm coming up with an "N/A".
The "IF" function needs a "value if false".......
Thanks for your help...

"Biff" wrote:

Hi!

Try this:

Entered as an array using the key combo of CTRL,SHIFT,ENTER:

=SUM(N(FREQUENCY(IF((A33:A2006=Date1)*(A33:A2006< Date1+7)*(B33:B2006="A5055"),MATCH(C33:C2006,C33:C 2006,0)),MATCH(C33:C2006,C33:C2006,0))0))

In order to shorten the formula just a little I used a named formula:

Date1 refers to:

=$C$5-CHOOSE(WEEKDAY($C$5),0,1,2,3,4,5,6)

Biff

"Vegs" wrote in message
...
I need this formula to exclude duplicate S/N which are enterd in
C33:C2006
for the part "A5055"

=SUMPRODUCT(--($A$33:$A$2006=$C$5-CHOOSE(WEEKDAY($C$5),0,1,2,3,4,5,6)),--($A$33:$A$2006<$C$5-CHOOSE(WEEKDAY($C$5),0,1,2,3,4,5,6)+7),--($B$33:$B$2006="A5055")