R help - Apr 2004 - is.infinite usage

Hi,

Is there a way of using is.infinite as is.na ? I'd like to avoid looping
the data.frame.
> mat
  x   y  z
1 1 Inf NA
2 2 Inf NA
3 3 Inf NA
> is.na(mat)
      x     y    z
1 FALSE FALSE TRUE
2 FALSE FALSE TRUE
3 FALSE FALSE TRUE

What I get at the moment is
> is.infinite(mat)
    x     y     z
FALSE FALSE FALSE

Thanks

EJ

Ernesto Jardim wrote:
> Hi,
> 
> Is there a way of using is.infinite as is.na ? I'd like to avoid
looping
> the data.frame.
> 
> 
>>mat
> 
>   x   y  z
> 1 1 Inf NA
> 2 2 Inf NA
> 3 3 Inf NA
> 
>>is.na(mat)
> 
>       x     y    z
> 1 FALSE FALSE TRUE
> 2 FALSE FALSE TRUE
> 3 FALSE FALSE TRUE
> 
> What I get at the moment is
> 
> 
>>is.infinite(mat)
> 
>     x     y     z
> FALSE FALSE FALSE

No, but what's the problem using

   sapply(mat, is.infinite)

instead?

Uwe Ligges


> Thanks
> 
> EJ
> 
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