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Re: opposite of AppendTo

  • To: mathgroup at smc.vnet.net
  • Subject: [mg124354] Re: opposite of AppendTo
  • From: Bill Rowe <readnews at sbcglobal.net>
  • Date: Tue, 17 Jan 2012 03:31:47 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com

On 1/16/12 at 5:12 PM, burket at mailbox.sc.edu (burke) wrote:

>AppendTo[s,e] appends "e" to "s" and then RESETS "s". How does one
>delete or remove an element "e" from a list "s" and then RESET "s"?
>The _reset_ is my problem.  I want to be able to add and delete
>elements of a list (a list of graphical elements with very low
>opacity).  I can "appendto" the list at will but am unable to delete
>elements (using Delete, DeleteCases, Except, Select, etc.). Deleting
>"e" from "s" is easy enough, but resetting "s" seems impossible.

In[12]:= a = data = RandomReal[1, 10];
AppendTo[data, 100];
data = Most[data];
a == data

Out[15]= True




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