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Re: Generate #s

  • To: mathgroup at smc.vnet.net
  • Subject: [mg111010] Re: Generate #s
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Fri, 16 Jul 2010 06:59:52 -0400 (EDT)

data = Array[x, 10]

{x(1),x(2),x(3),x(4),x(5),x(6),x(7),x(8),x(9),x(10)}

example = {1, 5, 7, 9};

data[[example]]

{x(1),x(5),x(7),x(9)}

#[[example]] &[data]

{x(1),x(5),x(7),x(9)}


Bob Hanlon

---- Francisco Gutierrez <fgutiers2002 at yahoo.com> wrote: 

=============
Dear Group:
Suppose I have a list of ordered integers:
example={1,5,7,9}
Based on it, I want to generate a list of the form:
{#[[1]], #[[5]],#[[7]],#[[9]]}
 
I tested with simple things like:
Table[#[[example[[i]]]], {i,1,Length[example]}]
to no avail.
 
How can I do it?



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