[R] R: Why this deosn't work?, matrix, rounding error?

[Gavin Simpson]

On Fri, 2010-10-08 at 09:30 -0700, skan wrote:
> It's a problem much bigger.
> I use a matrix to store the results of a bigger problem.
> I loop through several variables and store the results of a computation on
> that matrix.
> At the beginning of the problem I initialize the matrix to zeros and I
> calculate its size from some input.
> 
> And that seems not to work well maybe because of some rounding error.

Several people have responded with a solution to your Q on
stackoverflow:

matrix(0, ncota*nslope, 4)

As the 0 will get recycled to appropriate length.

G
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