

   CCrreeaattee AA VVeeccttoorr ooff SSeeqquueenncceess

        sequence(nvec)

   AArrgguummeennttss::

       nvec: an integer vector each element of which specifies
             the upper bound of a sequence.

   DDeessccrriippttiioonn::

        For each element of `nvec' the sequence `seq(nvec[i])'
        is created. These are appended and the result returned.

   SSeeee AAllssoo::

        `gl', `seq', `rep'.

   EExxaammpplleess::

        sequence(c(3,2))# the concatenated sequences 1:3 and 1:2.
        #> [1] 1 2 3 1 2

