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Replacing Numbers in a List

• To: mathgroup at smc.vnet.net
• Subject: [mg68230] Replacing Numbers in a List
• From: Gregory Lypny <gregory.lypny at videotron.ca>
• Date: Sun, 30 Jul 2006 04:47:53 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Hello everyone,

I have a long list of integers called x, and I want to replace those  
that are members of list y with the number 222.

I did it this way with a Do loop.

y = {122, 211, 212, 221, 223, 232, 322};
Do[x = ReplacePart[x,222, Position[x, y[[i]]]],{i, Length@y} ]

Is this OK, or is there a more direct way?

Regards,

	Gregory

• Follow-Ups:
  • Re: Replacing Numbers in a List
    • From: Adriano Pascoletti <pascolet@dimi.uniud.it>