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Re: st: RE: RE: RE: AW: Decimal Precision with Destring


From   Steve Samuels <sjsamuels@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: RE: RE: AW: Decimal Precision with Destring
Date   Mon, 19 Apr 2010 16:14:12 -0400

I think that Maarten means  "9 digits BEFORE the decimal point".
Steve

On Mon, Apr 19, 2010 at 3:35 PM, Maarten buis <maartenbuis@yahoo.co.uk> wrote:
> --- On Mon, 19/4/10, Sutton, Bennett W. wrote:
>> I know these are insanely small hairs to be splitting, but
>> unfortunately this work is going into a publication and I
>> need to make sure that the rounded result will be 4.5 and
>> not 4.6.  (not just here but in many, many other
>> calculations.)
>
> If reproducability across programs is your aim, then your
> best bet is probably to multiply your variables with some
> multiple of 10 such that the largest value of each variable
> has 9 digits after the decimal point, round the variables,
> and than store these  variables as -long-s (with the
> factors). Computers have much less trouble representing
> integers, so this way you are more likely to get the same
> results across computer programs.
>
> Hope this helps,
> Maarten
>
> --------------------------
> Maarten L. Buis
> Institut fuer Soziologie
> Universitaet Tuebingen
> Wilhelmstrasse 36
> 72074 Tuebingen
> Germany
>
> http://www.maartenbuis.nl
> --------------------------
>
>
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>



-- 
Steven Samuels
sjsamuels@gmail.com
18 Cantine's Island
Saugerties NY 12477
USA
Voice: 845-246-0774
Fax:    206-202-4783

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