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Pardon me. I'm confused. 

When you say C5 (for example) which do you mean, Row 5 in Column C or the fifth column?

Where is the calculation?

You speak of C1, C3, C5, C7, ... but what about C2, C4, C6, C8, ...?

Here is what I understand (my suppositions): 

Row 1 is a ser of column headings. 

Column A contains a set of names (of regions maybe). 

Columns C, E, G, I, ... are headed by dates (e.g. Jan 1, Feb 14, etc.). 

At the intersection of column C and row 2 is a number (maybe a counter of some kind) relating to 
the first region from Jan 1 through Feb 13. Other cells in columns C, E, G, I, ... get filled 

Starting with the third time interval you want to calculate the average of the most recent three 
vakues stored in those cilumns bur adjusted by some mystery constant for that region (column B 
maybe) and maybe store that result in columns D, F, H, J ....

If I'm right,  which is a mighty big IF, then the task is quite easily accomplished but I'll await 
your response to my suppositions before going any further. Besides that I need some sleep.


-----Original Message-----
From: pete nikolic <>
To: James E Lang <>
Sent: Fri, 24 Apr 2015 23:43
Subject: Re: [libreoffice-users] selecting cells in calc sheet

On Fri, 24 Apr 2015 20:36:10 -0700
James E Lang <> wrote:


You still leave a lot unsaid such as whether the result is in a single fixed
location, what if anything is in the even numbered rows of column C, whether any
other column can be used for identification purposes, what if anything is below
the most recent month's data, etc. You imply that there's no more than eight
months worth of data so I guess C17 ends the series.

Without some of the information vacuum filled I'm not sure what we can do for you.

Right   let me see how i can put this without attaching a spreadsheet


C1 name C3  date1       C5 date2        C7 date3        C9 date4        C11

in those colums  under the dates will be numbers of i would guess around the 40 to
60 region but only on or after the date ie under date 1 on row name 1 say 45  next
month it is date2 name1 say 48 then date3 name1  60, date4 name1  48 date5 name1 56
ect ect

Dates are columns rows are names there will be about 25 names  8 dates in total  so
for date1 date2 both name1 there would be no result , then fill date3 name 1 i then
need to do the add date1 date2 date3 divide by .

Thats is the easy bit  now when i fill date4 i need it to ignore date1 and add date
2 date3 date4 then divide  when i fill date 5 i need it to ignore date1 date 2  add
date3 date4 date5 divide by 3 and carry on like that always only picking the last
3 dates ignoring any earlier .

does that help any 

                date1   data2   date3   date4   date5
  name1 48              60              48              56                      



Illegitimi non carborundum . ro for the purists out there
Noli nothis permittere te terere. 

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