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Re: List Assignment Question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg31810] Re: [mg31801] List Assignment Question
  • From: Ken Levasseur <Kenneth_Levasseur at uml.edu>
  • Date: Mon, 3 Dec 2001 01:44:59 -0500 (EST)
  • References: <200112020925.EAA14112@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Jim:

The reason why  First[data]=Rest[data] won't work is because Set has the
HoldFirst Attribute.  To get around it use Evaluate:

Evaluate[First[data]]=Rest[data]

Ken Levasseur
Math. Sci.
UMass Lowell

Jim Purdy wrote:

> Hello,
>
> I want to do the following:
>
> Given the list ,
>
> data={abc, 1, 2.3, 3, 4}
>
> do this:
>
> First[data]=Rest[data]  (wont work)
>
> basically creating a variable named for the first element in the list
> and assigning it to the remainder.
>
> abc={1,2.3,3,4} would be the result.
>
> There probably is a simple answer, but I can't find it.
>
> Thanks in advance
>
> Jim



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