R help - Nov 2011 - R error function (NOT erf)

Hi all,

I was wondering if it was possible to get R to throw an error if a 
certain condition was reached. For example:

if dim(A)[2]<=1
     error("Need a matrix not a vector")

thanks,
Sachin

On 17/11/11 18:54, Sachin Abeywardana wrote:
> Hi all,
>
> I was wondering if it was possible to get R to throw an error if a 
> certain condition was reached. For example:
>
> if dim(A)[2]<=1
>     error("Need a matrix not a vector")
     ?stop

     cheers,

         Rolf Turner