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Re: st: RE: Problem with "real" command
From
Jérôme Fauconnier <[email protected]>
To
[email protected]
Subject
Re: st: RE: Problem with "real" command
Date
Wed, 29 Jun 2011 16:50:42 +0200
It works
Thank you very much
Dr Jérôme Fauconnier
CHU Grenoble
Pôle de Santé Publique
Département d'Information Médicale
Pavillon Taillefer
BP217
38043 GRENOBLE cedex
Tel : + 33 4 76 76 50 35
Fax : + 33 4 76 76 52 02
mail : [email protected]
Le 29 juin 2011 à 14:24, Nick Cox a écrit :
> This is not a problem with the -real()- function at all. The problem lies in your use by default of a -float- variable type.
>
> You need to use a more appropriate storage type, e.g. -double-, to avoid precision problems.
>
> . gen double numven6=real("600010154088")
>
> . format numven6 %18.0f
>
> . l numven6 in 1
>
> +--------------+
> | numven6 |
> |--------------|
> 1. | 600010154088 |
> +--------------
>
> -search precision- for many sources of further information.
>
> Nick
> [email protected]
>
> Jérôme Fauconnier
>
> When I use the "real" function with large numbers, I have random results as :
>
> command :
> gen numven6=real("600010154088")
>
> i get the following result :
>
> numven6=600010129408
>
> Have anybody had the same problem?
>
> *
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*
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