[R] syntax error in function 'for'

[Ulrich Leopold]

On Wed, 2004-05-05 at 17:11, Peter Dalgaard wrote:
> Ulrich Leopold <uleopold at science.uva.nl> writes:
> 
> > Dear list,
> > 
> > I get a syntax error for the following function:
> > 
> > for(na.omit(sqrt(D))>2) {na.omit(A)-(na.omit(B)+(na.omit(sqrt(C))))}
> > 
> > Any idea what is wrong?
> 
> Yes, that's not the syntax for a for loop. I have no idea what your
> intention might have been, though.

Ok thanks. I think I misunderstood the example in the help. I think, I
rather need an if function.

I would like to calculate the right hand side if the condition on the
left hand side is met. I am afraid I do not quite understand the syntax.

if(na.omit(sqrt(D))>2) {na.omit(A)-(na.omit(B)+(na.omit(sqrt(C))))}

Now I get the following warning:
the condition has length > 1 and only the first element will be used in:
if(na.omit(sqrt(D))>2) {


-- 
__________________________________________________

Ulrich Leopold MSc.

Computational Bio- and Physical Geography (CBPG)
Institute for Biodiversity and Ecosystem Dynamics (IBED)
Faculty of Science
University of Amsterdam
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