Concatenating random number of random length vectors

["P.J.Wells" <P.J.Wells@open.ac.uk>]

The following looks like it should be simple, but I can't see it -- would
someone kick-start me?

I have vectors sample.1, sample.2,...sample.N, where N is a random number,
and length(sample.i) is also random.

How do I turn these into one big vector? 

Julian Wells

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The Open University
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