#### SUMIF/COUNTIF with missing data

```Right now, I'm using the following function to get the average of column B,
given that column A has a certain criteria:

=SUMIF(\$A\$1:\$A\$10,"=Blue",\$B\$1:\$B\$10)/COUNTIF(\$A\$1:\$A\$10,"=Blue")

Which works fine, except that for some of the entries whose A column says
"blue" there is no data in the B column, so the denominator is off. How can I
account for missing data in this function?

```
 0
Utf
12/22/2009 4:43:01 PM
excel.worksheet.functions 4936 articles. 2 followers.

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```Try

=SUMIF(\$A\$1:\$A\$10,"Blue",\$B\$1:\$B\$10)/SUMPRODUCT((\$A\$1:\$A\$10="Blue")
*(B1:B10<>""))

OR  try the below array formula. You create array formulas in the same way
that you create other formulas, except you press CTRL+SHIFT+ENTER to enter
the formula. If successful in 'Formula Bar' you can notice the curly braces
at both ends like "{=<formula>}"

=AVERAGE(IF(A1:A10="Blue",IF(B1:B10<>"",B1:B10)))

--
Jacob

"AAA1986" wrote:

> Right now, I'm using the following function to get the average of column B,
> given that column A has a certain criteria:
>
>
> =SUMIF(\$A\$1:\$A\$10,"=Blue",\$B\$1:\$B\$10)/COUNTIF(\$A\$1:\$A\$10,"=Blue")
>
> Which works fine, except that for some of the entries whose A column says
> "blue" there is no data in the B column, so the denominator is off. How can I
> account for missing data in this function?
>
```
 0
Utf
12/22/2009 4:53:02 PM
```Try this array formula** :

=AVERAGE(IF(A1:A10="blue",IF(B1:B10<>"",B1:B10)))

** array formulas need to be entered using the key combination of
CTRL,SHIFT,ENTER (not just ENTER). Hold down both the CTRL key and the SHIFT
key then hit ENTER.

--
Biff
Microsoft Excel MVP

"AAA1986" <AAA1986@discussions.microsoft.com> wrote in message
news:24D0D2E9-25A8-413E-8263-519B6D6952AC@microsoft.com...
> Right now, I'm using the following function to get the average of column
> B,
> given that column A has a certain criteria:
>
>
> =SUMIF(\$A\$1:\$A\$10,"=Blue",\$B\$1:\$B\$10)/COUNTIF(\$A\$1:\$A\$10,"=Blue")
>
> Which works fine, except that for some of the entries whose A column says
> "blue" there is no data in the B column, so the denominator is off. How
> can I
> account for missing data in this function?
>

```
 0
T
12/22/2009 4:58:47 PM
```Thanks! The first one works great. But what's the difference between the
first one and the array one? Is there any reason I should use one instead of
the other?

"Jacob Skaria" wrote:

> Try
>
> =SUMIF(\$A\$1:\$A\$10,"Blue",\$B\$1:\$B\$10)/SUMPRODUCT((\$A\$1:\$A\$10="Blue")
> *(B1:B10<>""))
>
> OR  try the below array formula. You create array formulas in the same way
> that you create other formulas, except you press CTRL+SHIFT+ENTER to enter
> the formula. If successful in 'Formula Bar' you can notice the curly braces
> at both ends like "{=<formula>}"
>
> =AVERAGE(IF(A1:A10="Blue",IF(B1:B10<>"",B1:B10)))
>
> --
> Jacob
>
>
> "AAA1986" wrote:
>
> > Right now, I'm using the following function to get the average of column B,
> > given that column A has a certain criteria:
> >
> >
> > =SUMIF(\$A\$1:\$A\$10,"=Blue",\$B\$1:\$B\$10)/COUNTIF(\$A\$1:\$A\$10,"=Blue")
> >
> > Which works fine, except that for some of the entries whose A column says
> > "blue" there is no data in the B column, so the denominator is off. How can I
> > account for missing data in this function?
> >
```
 0
Utf
12/22/2009 7:10:01 PM
```The 1st one is a bit lenghty; but I would prefer the 1st one..

--
Jacob

"AAA1986" wrote:

> Thanks! The first one works great. But what's the difference between the
> first one and the array one? Is there any reason I should use one instead of
> the other?
>
> "Jacob Skaria" wrote:
>
> > Try
> >
> > =SUMIF(\$A\$1:\$A\$10,"Blue",\$B\$1:\$B\$10)/SUMPRODUCT((\$A\$1:\$A\$10="Blue")
> > *(B1:B10<>""))
> >
> > OR  try the below array formula. You create array formulas in the same way
> > that you create other formulas, except you press CTRL+SHIFT+ENTER to enter
> > the formula. If successful in 'Formula Bar' you can notice the curly braces
> > at both ends like "{=<formula>}"
> >
> > =AVERAGE(IF(A1:A10="Blue",IF(B1:B10<>"",B1:B10)))
> >
> > --
> > Jacob
> >
> >
> > "AAA1986" wrote:
> >
> > > Right now, I'm using the following function to get the average of column B,
> > > given that column A has a certain criteria:
> > >
> > >
> > > =SUMIF(\$A\$1:\$A\$10,"=Blue",\$B\$1:\$B\$10)/COUNTIF(\$A\$1:\$A\$10,"=Blue")
> > >
> > > Which works fine, except that for some of the entries whose A column says
> > > "blue" there is no data in the B column, so the denominator is off. How can I
> > > account for missing data in this function?
> > >
> > > Thanks in advance.
```
 0
Utf
12/23/2009 5:36:01 AM

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