Average the last 5 of a continually filling row.

[Guest]

I have 20 cells in a row (G34:Z34) with data in the first 7 cells (G:34 thru
M:34)
I would like to average the last 5 entries and continue averaging the last
five as I fill the entire row with data. I would like to expand this row to a
greater lenght in the future.

 

[Ken Wright]

Anywhere but in G34:IV34

=AVERAGE(OFFSET($F$34,,COUNTA(G34:IV34),,-5))

Assumes nothing else in row 34 after your last number

 

[Ken Wright]

=AVERAGE(OFFSET($F$34,,COUNTA(G34:IV34),,-(MIN(COUNTA(G34:IV34),5))))

Will handle it when you have less than 5 values in your range

 

[Guest]

I have tried copying the formula and pasting it to the cell where I want the
average to be displayed and I get a "0" result. I have tried entering it also
with the <shift><Ctrl><Enter> also and still get the same results. There is
data in G:34-O:34.(9 cells accross row 34). Do I have to change the formula
any?

Thanks,
Geo

 

[Ken Wright]

What cell are you putting it in?
Is there anything else at all in row 34 after the column that has the last
number in, which you said was O34
When you array entered, did you click into the formula in the formula bar,
or hit F2 to go into edit mode, and then whilst holding down CTRL+SHIFT hit
the ENTER key. if entered corrcetly the formula will display in the formula
bar with curly braces around it, eg {formula}. These braces CANNOT be
entered manually, it is not the same.

--
Regards
Ken....................... Microsoft MVP - Excel
Sys Spec - Win XP Pro / XL 97/00/02/03

----------------------------------------------------------------------------
It's easier to beg forgiveness than ask permission
----------------------------------------------------------------------------

I have tried copying the formula and pasting it to the cell where I want the
average to be displayed and I get a "0" result. I have tried entering it also
with the <shift><Ctrl><Enter> also and still get the same results. There is
data in G:34-O:34.(9 cells accross row 34). Do I have to change the formula
any?

Thanks,
Geo

=AVERAGE(OFFSET($F$34,,COUNTA(G34:IV34),,-(MIN(COUNTA(G34:IV34),5))))

Will handle it when you have less than 5 values in your range

--
Regards
Ken....................... Microsoft MVP - Excel
Sys Spec - Win XP Pro / XL 97/00/02/03

--------------------------------------------------------------------------

--

It's easier to beg forgiveness than ask permission
--------------------------------------------------------------------------

--

 

[Guest]

I am putting the formula into cell 05. The cells that follow O34 contain
zeros. I clicked on the formula bar then hit the CTRL+SHIFT ENTER key. I did
end up with the curly brackets around the entire formula. but ended up with a
"0" result.

 

[Ken Wright]

As per the caveat in the first note:-

Now need some more info regarding your data. Can the value be 0 for any
period included within the one you are looking at?

Can any number be less than 0?

--
Regards
Ken....................... Microsoft MVP - Excel
Sys Spec - Win XP Pro / XL 97/00/02/03

----------------------------------------------------------------------------
It's easier to beg forgiveness than ask permission
----------------------------------------------------------------------------

I am putting the formula into cell 05. The cells that follow O34 contain
zeros. I clicked on the formula bar then hit the CTRL+SHIFT ENTER key. I did
end up with the curly brackets around the entire formula. but ended up with a
"0" result.

What cell are you putting it in?
Is there anything else at all in row 34 after the column that has the last
number in, which you said was O34
When you array entered, did you click into the formula in the formula bar,
or hit F2 to go into edit mode, and then whilst holding down CTRL+SHIFT hit
the ENTER key. if entered corrcetly the formula will display in the formula
bar with curly braces around it, eg {formula}. These braces CANNOT be
entered manually, it is not the same.

--
Regards
Ken....................... Microsoft MVP - Excel
Sys Spec - Win XP Pro / XL 97/00/02/03

--------------------------------------------------------------------------

--

It's easier to beg forgiveness than ask permission
--------------------------------------------------------------------------

--

I have tried copying the formula and pasting it to the cell where I

want
the

average to be displayed and I get a "0" result. I have tried entering

it
also

with the <shift><Ctrl><Enter> also and still get the same results.

There
is

data in G:34-O:34.(9 cells accross row 34). Do I have to change the formula
any?

Thanks,
Geo

:

=AVERAGE(OFFSET($F$34,,COUNTA(G34:IV34),,-(MIN(COUNTA(G34:IV34),5))))

Will handle it when you have less than 5 values in your range

--
Regards
Ken....................... Microsoft MVP - Excel
Sys Spec - Win XP Pro / XL 97/00/02/03

----------------------------------------------------------------------------------------------------------------------------------------------------

--

Anywhere but in G34:IV34

=AVERAGE(OFFSET($F$34,,COUNTA(G34:IV34),,-5))

Assumes nothing else in row 34 after your last number

--
Regards
Ken....................... Microsoft MVP - Excel
Sys Spec - Win XP Pro / XL 97/00/02/03

---------------------------------------------------------------------------------------------------------------------------------------------------- cells
(G:34

thru
M:34)
I would like to average the last 5 entries and continue

averaging
the

last
five as I fill the entire row with data. I would like to expand

this
row

to a
greater lenght in the future.

 

[Aladin Akyurek]

Ken,

Maybe...

=AVERAGE(OFFSET(G34,,MATCH(2,1/(G34:Z34<>0))-1,,-5))

is what Geo is looking for.

The formula must be confirmed with control+shift+enter.

Note also that the formula does not check whether there is a sufficent
amount of data points in the range of interest.

 

[Guest]

Yes, There is a possibility that a number in the 34 row may be less than zero
in the future.

 

[Ken Wright]

Hi Aladin, given the OPs last reply to me

I'd now be dubious about relying on anything other than manually telling it
how many data points to cater for. If the value can be greater than 0 and
less than 0 then I have to believe it is possible to actually be 0. If he's
100% sure it can't then that should do him though

That having been said, in this type of scenario there is usually some kind
of flag on the sheet that denotes a date or something that can be used to
calculate how many date periods and hence data points should be analysed,
even if it's just using something like MATCH/HLOOKUP etc to marry up the
current month and year with the dates that i assume sit on top of this data.

--
Regards
Ken....................... Microsoft MVP - Excel
Sys Spec - Win XP Pro / XL 97/00/02/03

----------------------------------------------------------------------------
It's easier to beg forgiveness than ask permission
----------------------------------------------------------------------------

Ken,

Maybe...

=AVERAGE(OFFSET(G34,,MATCH(2,1/(G34:Z34<>0))-1,,-5))

is what Geo is looking for.

The formula must be confirmed with control+shift+enter.

Note also that the formula does not check whether there is a sufficent
amount of data points in the range of interest.

<snip>

 

[Guest]

Hi,
First off I would like to apologize for wasting peoples time. That is that
last thing that I want to do. I feel that this is a great thing going on and
that the more knowledgable people are providing a great service to people
like me. So again I apologize.
Now that I have that off my chest.....What I am donig is a handicap
worksheet. Yes some of the cells in the rows could possibly have zeros in
them (But my score won't reflect that). I didn't want to use them if the
column didn't have data in them (Zeros in the row after my last column of
data). So far everything offer to me as far as help has been fantastic, and I
think that I am in good shape. I am probably asking the worksheet to do to
much. I think that I am trying to get to complex with this and should stick
with simplicity. Thank you so much for everyones time.

Also, I think that the last formula give by Aladin did the trick for me,
Thanks!!

 

[Ken Wright]

LOL - If that's how it came across then my apologies as it wasn't meant to.
If Aladin's solution works then good stuff and go with it. Almost anything
can be catered for, but we have to know the rules of engagement with the
data

 

[Guest]

Hi,
Nothing you or Aladin said came across poorly. A comment that was said in a
different post made me feel that I had somehow abused the discussion group
which was not my intention. I’m sure that I’ll need more help at a later
time. Thanks again!

“Just to make sure he posted again a third time and wasted Ken Wright's time
as well as

--
Regards,

Peo Sjoblom

(No private emails please, for everyone's
benefit keep the discussion in the newsgroup/forum)