Average Function

Hi Everyone,

I am using Excel 2003. I understand there is probably a very sophisticated
way to get what I want but I need to learn the simple way first. I have a
data sheet named "MICU". I inserted another sheet in the workbook called
"Stats". I want to break down the data by month on my new Stats sheet. The
MICU sheet has many columns of info. The 2 I think I need to use is a
column for start date "ThpyStDtTm" (Date and Time field 3/14/09 18:41) and
a column called "VentLOSDays" (Number format with 2 decimal places).

Column A Column B
Month Ave VentLOS
June-08 2.41
July-08 3.75
Aug-08 3.42

I clicked on cell B2 (The June-08 Ave VentLOS cell) and inserted the ave
function using the Insert/Function tool menu then used the little function
arguments dialog box to go to the MICU sheet and selected all the numbers in
the average LOS column for patients started on therapy in June. Is there a
way to have an argument in there to find all the records from June 08 using
the ThpyStDtTm column? This is what my function looks like so far =AVERAGE
('MICU'!K17:K52). The July-08 looks like this =AVERAGE ('MICU'!K53:K93).
This works great but I have to select by hand/eye which is time consuming
and errors occur if "I haven't had enough coffee" and I am not sure what
will happen if I decide to exclude a record later on, or perhaps sort this
list another way.

Thanks,
Linda

Hi Linda,

First of all, June-08 is that supposed to be June 2008? If so make sure by
selecting a cell with this value and look in the formula bar and make sure
it doesn't say 6/8/2009, that is what my Excel does if I type June-08, Excel
thinks you mean June 8th current year. Anyway it is very easy to get average
for particular months and years,



=AVERAGE(IF((MONTH(A3:A21)=6)*(YEAR(A3:A21)=2008),B3:B21))



the above will average values in B where A = June 2008


but first make sure the dates are really June 08 values and not June 2009



--


Regards,


Peo Sjoblom


"Linda RQ" <RomulanQueen.TakeThisOut@Work.SSTNG> wrote in message
news:Oz$RK0vXKHA.4816@TK2MSFTNGP06.phx.gbl...
> Hi Everyone,
>
> I am using Excel 2003. I understand there is probably a very
> sophisticated way to get what I want but I need to learn the simple way
> first. I have a data sheet named "MICU". I inserted another sheet in the
> workbook called "Stats". I want to break down the data by month on my new
> Stats sheet. The MICU sheet has many columns of info. The 2 I think I
> need to use is a column for start date "ThpyStDtTm" (Date and Time field
> 3/14/09 18:41) and a column called "VentLOSDays" (Number format with 2
> decimal places).
>
> Column A Column B
> Month Ave VentLOS
> June-08 2.41
> July-08 3.75
> Aug-08 3.42
>
> I clicked on cell B2 (The June-08 Ave VentLOS cell) and inserted the ave
> function using the Insert/Function tool menu then used the little function
> arguments dialog box to go to the MICU sheet and selected all the numbers
> in the average LOS column for patients started on therapy in June. Is
> there a way to have an argument in there to find all the records from June
> 08 using the ThpyStDtTm column? This is what my function looks like so
> far =AVERAGE ('MICU'!K17:K52). The July-08 looks like this =AVERAGE
> ('MICU'!K53:K93). This works great but I have to select by hand/eye which
> is time consuming and errors occur if "I haven't had enough coffee" and I
> am not sure what will happen if I decide to exclude a record later on, or
> perhaps sort this list another way.
>
> Thanks,
> Linda
>