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Re: Iterate through a list

• To: mathgroup at smc.vnet.net
• Subject: [mg76914] Re: Iterate through a list
• From: chuck009 <dmilioto at comcast.com>
• Date: Wed, 30 May 2007 05:12:51 -0400 (EDT)

Suppose your list is newlist.  The following code is shorthand for "map the pure function defined by #[[1]] to each element of the list.  Since each element of the list is a sublist, the mapping function is taking the first item in each sublist. Check out the Map command.    

newlist = #[[1]] & /@ list

or:

newlist=Map[First,newlist]