[mso] Re: Unsolicited Sharing - Relative Incrementing of the INDIRECT formula
- From: "David Smart" <smartware@xxxxxxxxxxxxxxx>
- To: <mso@xxxxxxxxxxxxx>
- Date: Fri, 23 Jun 2006 21:26:19 +1000
Shirley
That's a nice way to do what you wanted, and also has the distinct advantage
of being done at "compile time". I.e. the resulting formulas are as
efficient as you're going to get them.
Another trick I've used on occasion - particularly when I'm only working
with a single column - is to put local cell references in the formulas and
then extract the row numbers from them. For instance, if I put the
following in G1:
=INDIRECT("Sheet2!B"&ROW(G1))
This will produce an indirect of B1 in sheet 2. This formula can be copied
downwards and will sort itself out on other rows.
It is possible to do the same thing in such a way that it can be copied
across the sheet too. E.g.
=INDIRECT("Sheet2!R"&ROW(G1)&"C"&COLUMN(G1),FALSE)
The FALSE takes the INDIRECT call into R1C1 mode so you can supply it with
column numbers rather than letters. The above formula grabs the G1 cell out
of Sheet 2. If you put the formula in G1, it can then be copied anywhere on
the sheet and will return the corresponding cell from Sheet2. If you put it
in a difference cell, it will still return G1 from sheet 2, and copying it
to other cells will move the selected sheet2 cell relatively.
Obviously, you can also use the $D$1 substitution to vary the sheet name.
The plus side of this method is that it is dynamic. The minus side is that
it's all done at "run time" and is relatively slow. (I certainly wouldn't
want to use it for the number of cells you're working with.)
(Note that this has the appearance of a circular reference - Cell G1 has a
reference to itself - but Excel is clever enough not to worry about that.)
Nagging at me also is the suggestion that you can do this with OFFSET. I'll
have a play later and post a follow-up if I can work out how.
Regards, Dave S
----- Original Message -----
From: "Shirley Graver" <shirleyg@xxxxxxxxxxxxx>
To: <mso@xxxxxxxxxxxxx>
Sent: Friday, June 23, 2006 1:18 AM
Subject: [mso] Unsolicited Sharing - Relative Incrementing of the INDIRECT
formula
>
> No one has asked about this type of issue that I've seen recently but its
> turned to be such a nice trick I thought I'd share it.
>
> 52 (weeks) spread sheets compiling weekly data, each sheet with 1100 plus
> line items (part numbers, each line item totaling ups 3 values. Easy to
> bring the total to the summary with =INDIRECT($D$1&"!G7") . However,
> repeat that down 1100 plus lines of data. Copy and paste will not allow
> "!G7" to perform a relative increment. Hand edit 1100 formula's !!yuck!!
> These steps will automate the process.
>
> Step 1 in the indirect formula change from =INDIRECT($D$1&"!G7") to
> =INDIRECT($D$1& G7 ), (you'll get a #ref value in your cell)
>
> Step 2 copy and paste down your range of cells. (This will allow the G7
> value to increment)
>
> Step 3 Within your copy range, find and replace the "=" with " " (or
> nothing) INDIRECT($D$1& G7 ) (This changes the line to text, has to
> be
> text or it will error)
>
> Step 4 Find and replace & with &"! (This changes your text from
> INDIRECT($D$1 & G7) to INDIRECT($D$1&"!G7)
>
> Step 5 Find and replace ) with ") (This changes your text from
> INDIRECT($D$1&"!G7) to INDIRECT($D$1&"!G7")
>
> Step 6 Find and Replace IND with =IND which changes your text back to a
> formula =INDIRECT($D$1&"!G7")
>
>
> If anyone else has tried to deal with this sort of problem hope this
> helps,
> it's stumped me for a long time. If there's a better way Please share.
>
> Shirley Graver
> Sys Admin
> Rubber Associates
>
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