R help - Nov 2009 - unusual result with "any"

Dear R People:

I am working with a numeric vector and trying to use the "any"
function.  However, I'm getting some odd results, as shown below:
> xy
[1] 0.7305081 2.4224211
> str(xy)
 num [1:2] 0.73 2.42
> any(xy) > 1
[1] FALSE
Warning message:
In any(xy) : coercing argument of type 'double' to
logical
>
What am I doing wrong please?

Thanks in advance,
Sincerely,
Erin



-- 
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com

Erin Hodgess schrieb:
>   
>> xy
>>     
> [1] 0.7305081 2.4224211
>   
>> str(xy)
>>     
>  num [1:2] 0.73 2.42
>   
>> any(xy) > 1
>>     
> [1] FALSE
> Warning message:
> In any(xy) : coercing argument of type 'double' to logical
>   
>
> What am I doing wrong please?
>
>   
xy > 1 should return TRUE FALSE, and you want to apply any() to that. 
Thus: any(xy > 1)
any(xy) returns TRUE, as the nonzero numbers are coerced to TRUE
When TRUE is compared with 1, it is coerced to a number (no warning is 
issued here), namely 1.
1 > 1 returns FALSE.