[R-sig-teaching] checking even/odd in R

[Robert W. Hayden]

I do not know of anything specific to r but standard programming
tricks may do it.  For example, if the number is x, compute y=x/2,
let z be y rounded to the nearest whole number, and check if y=z.  If
it does, x is even.  There may be rounding issues; I doubt R stores
data as integers.  You might have to do this in an environment that
sees the numbers as integers -- or text.  AWK comes to mind.

You may also want code to check for x values like 23.456. 

> 
> Dear all,
> 
> I'm in search for a function which can be used to check whether a 
> numeriacl value (say, x) is even/odd.
> Any help is highly appreciated.
> 
> Thanks
> Yeasmin
> 
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