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Re: "expanding a list"

  • To: mathgroup at
  • Subject: [mg57890] Re: "expanding a list"
  • From: Bill Rowe <readnewsciv at>
  • Date: Sat, 11 Jun 2005 03:35:55 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

On 6/10/05 at 2:29 AM, mark at (Mark Coleman) wrote:

>I'd like to construct a list as follows. Say I have a list of reals
>{x1,x2,x3,...xn}, and another list of integers {r,s}. I'd like to
>make a new list

>where the first sublist is of length r, and the remaining sublists
>are of length s.

Assume lst is set to your list of reals, then

Join[{Table[First@lst,{r}]},Rest@Transpose@Table[lst, {s}]]

should give you what you want.
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