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# Re: [libreoffice-users] Generic formulas or inverse scenarii

In fact, i thought of possible solution after i submitted this question. Is there a way to link cells between sheets in a way that they are "virtually the same"? Changing B4 in a sheet would change also B4 in other sheets where B4 is linked.
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Because my problem is not more complicated than that finally: "i have three sheets almost identical except for the 4 first cells, how do i avoid maintening the three ones when i need to change a cell that is the same in all three sheets?"
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Then i thought of some kind of link. But i don't know...

Thank you!

Ninj

Le 14/03/2012 22:55, Ninj a écrit :
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```Hi,

I wonder if Calc can help in my case:

I'm writing a financial forecast for my company. We sell 3 kinds of products.
But they all use the same scheme when it comes to computing fees and incomes.
So i made one (big) table with all the computation process and the comments
(it has to be shown to financers). The product variables are isolated at the
top of the sheet.

Then i used scenarii on my variables (there are only 4 variables to define a
product). It's fine: i can switch scenario and i see all the matching
forecasted results on the computation table.

But now, i want a new spreadsheet summarizing our activity: we sell the 3 kind
of products, so i make a table with three lines, one by product. Rows are for
years (5 in my forecast). And of course, i would like this table to be
dynamic, and change with whatever variable i change in scenarii or formula in
the forecast table. The problem is scenarii are not the answer, because they
are by definition volatile: when you switch scenarii, all the data,
everywhere, gets adapted. Even naming a scenario and using its name when
refering to a cell doesn't work, because cells out of the scenario's frame are
considered empty.

So, is there a way to mix the scenario behaviour with dynamic tables mixing
data from all scenarii?

I thought of generic formulas: i could make only one sheet with all
computation, then 3 other sheets with only the variable data of each of the 3
products, and use the first same sheet formula in the 3 next ones to get my
results (in place). Then a 5th sheet could easily summarize all that. The
first sheet would not have any result, since without the data of the 3 other
sheets, it's only formulas.

I hope i was clear. Not easy to explain that, but i'm sure you see my problem,
and maybe someone has another, magical, solution.

Of course i could copy 3 times the whole sheet (data + computation), but that
means much more maintenance, since i'm changing often details in the formulas
(i should do changes three times always). And what about same case but with
10+ products?

Thank you for reaching this line of text :)

Best regards,

Ninj

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