> Date: Mon, 26 Oct 2009 22:00:53 +0100
> From: Lutz M?ller <[email protected]>
> Subject: Re: about as simple as it gets or ?

> On Mon, 2009-10-26 at 08:17 -0400, chris dunn wrote:

>> I want to copy a series of positive numbers to a new location.
>> 
>> However, when I paste the numbers I would like them to show up as
>> negative instead of positive.
>> 
>> Is there an easy way to achieve this short of pasting, and then
>> individually changing the values to negative?  

> I always copy the values, then type somewhere -1, copy it, and
>"special" paste it over the previously copied data with the operation
>"multiply".

> Lutz

> Date: Mon, 26 Oct 2009 23:25:05 +1100
> From: Hal Ashburner <[email protected]>
> Subject: Re: about as simple as it gets or ?


> Hello!
> Here's one, pretty simple way.

> in sheet 2, cell A1 enter (or whever your data actually starts)
> =-Sheet1!A1

> copy the formula down and then accross for the extent of the data on 
> sheet 1.
> Select then copy it all
> edit->paste special-> check "values"

> now you have a sheet with all the same numbers  but negated that you
> can copy and paste.

> Another way might be to save the data as a csv file then using your 
> favourite scripting solution (perl, python, ruby, shell, haskell?) To 
> read the data then write out a file with the numbers negated.


> I hope this helps.

> Hal

Thanks to both Lutz and Hal for your input. Both methods work well
and are a giant leap forward from changing the individual cells.

-- 

Chris Dunn
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