function createResults( k, ndims ) {
	var out = {};
	out.centroids = createMatrix( k, ndims, false ); // high-level
	out.stats = createMatrix( k, NSTATS, false ); // high-level
	return out;
}
Returns a results object.

@private
@param {PositiveInteger} k - number of clusters
@param {PositiveInteger} ndims - number of dimensions
@returns {Object} results object