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MathGroup Archive 2004

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Re: foreach loop

  • To: mathgroup at smc.vnet.net
  • Subject: [mg51966] Re: foreach loop
  • From: D Herring <dherring at at.uiuc.dot.edu>
  • Date: Fri, 5 Nov 2004 02:20:07 -0500 (EST)
  • References: <cmckcr$i2d$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

symbio wrote:
> Is there a foreach loop statement in Mathematica?  I need to loop through a 
> list of words, rather than numbers.  I need the equivalent of Do[expr, 
> {n,0,10,1}], except I need to step through a list like so:  foreach loop 
> [expr, {fall, winter, spring, summer}].  Can anyone help? 
> 

One method:
seasons={fall, winter, spring, summer}
Do[expr[seasons[[i]]], {i, Length[seasons]}]

Another:
Map[expr, {fall, winter, spring, summer}]

Equivalently:
expr /@ {fall, winter, spring, summer}

I'm sure there are numerous other creative ways of doing things.

Later,
Daniel


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