[R] Creating Binary Outcomes from a continuous variable

[Roger Bivand]

On Wed, 7 Jul 2004, Doran, Harold wrote:

> Dear List:
> 

?cut

>  
> 
> I have searched the archives and my R books and cannot find a method to
> transform a continuous variable into a binary variable. For example, I
> have test score data along a continuous scale. I want to create a new
> variable in my dataset that is 1=above a cutpoint (or passed the test)
> and 0=otherwise.
> 
>  
> 
> My instinct tells me that this will require a combination of the
> transform command along with a conditional selection. Any help is much
> appreciated.
> 
>  
> 
> Thanks,
> 
> Harold
> 
> 
> 	[[alternative HTML version deleted]]
> 
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-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Breiviksveien 40, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 93 93
e-mail: Roger.Bivand at nhh.no