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Re: st: RE: Changing property of a variable into number


From   "Ziad El-Khatib" <Ziad.El-Khatib@ki.se>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Changing property of a variable into number
Date   Thu, 4 Sep 2008 05:36:14 -0700

Dear Nick,
Thank you. I managed to do it by copy/paste from/to excel.
Best regards
ziad


On Thu, Sep 4, 2008 at 5:33 AM, Nick Cox <n.j.cox@durham.ac.uk> wrote:
> You really need to do some reading on Stata basics! For example, as a
> person working with medical data working through Svend Juul's book would
> be excellent for you.
>
> The format %9s is a string format. It implies that the variable is a
> string variable. Thus Stata won't let you change the format to a numeric
> format.
>
> Even if Stata let you do that, changing how a variable is displayed does
> not change how a variable is stored.
>
> You need to convert this variable to a numeric variable using
> -destring-.
>
> See for a tutorial on numeric and string
>
> SJ-2-3  pr0006  . . . . . . . . . . . . Speaking Stata: On numbers and
> strings
>        Q3/02   SJ 2(3):314--329                                 (no
> commands)
>        explains the use of numeric and string data types in Stata
>        and how to convert from one kind to another
>
> You can find that on-line as a .pdf regardless of whether you or your
> institution subscribe to the Stata Journal.
>
> Nick
> n.j.cox@durham.ac.uk
>
> Ziad El-Khatib
>
> For strange reasons one of the variables (diarr) (coded 1/2) has
> format %9s so I can not use it when putting it in a sum formula in
> STATA.
> I tried to change its format using edit command, I looked at another
> variable format it has property %8.0g so I tried using it for diarr
> variable but it gives window with message "%8.0g is not a valid
> display format".
>
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>



-- 
Ziad El-Khatib
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*
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