Re: st: identifying even & odd numbers

[Roger Newson <roger.newson@kcl.ac.uk>]

At 13:10 30/03/04 -0500, Danielle Ferry wrote:
> Hi,
> I apologize if this has been addressed previously. I haven't found 
> anything in the archives, though I feel as though it surely must be there 
> somewhere. I am wondering if there is a way to create a new variable that 
> takes on a value if another variable is an even or an odd number. For 
> example, can you do something like this:
> ge newvar = 1 if oldvar is even
> If this has made its way thru the list before, perhaps someone can suggest 
> better search keywords for the archives? Thanks.
Under -help functions-, you can click on -mathfun-, and find the -mod()- 
function. The assignment

generate z=mod(x,y)

causes -z- to be equal to -x- modulo -y-, ie the remainder of -x- if 
divided by -y-. So, if you type

gene odd=mod(x,2)

then odd will be 1 for odd -x- and 0 for even -x-.

I hope this helps.

Roger


--
Roger Newson
Lecturer in Medical Statistics
Department of Public Health Sciences
King's College London
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Opinions expressed are those of the author, not the institution.

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