Re: repmat (was "Computing distance matrix robustly")

[John W. Eaton]

On  3-Oct-2005, Tom Holroyd wrote:

| 
| > Is there an advantage to using repmat instead of kron as follows:
| > kron(ones(m, n), X)
| > vs.
| > repmat(X, m, n)
| 
| In 2.9.3 kron is built-in so it's a huge winner.

But repmat calls kron (at least in some cases) so the speed difference
should not be too large.  I think repmat is a better mnemonic than
kron, so using repmat makes the code easier to follow.

jwe



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