Re: Selecting Lists Without Null Results
- To: mathgroup at smc.vnet.net
- Subject: [mg69058] Re: [mg68970] Selecting Lists Without Null Results
- From: Gregory Lypny <gregory.lypny at videotron.ca>
- Date: Tue, 29 Aug 2006 03:25:40 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Thanks Chris Chiasson, Jean-Marc Gulliet, Bob Hanlon, David Park, and Adriano Pascoletti for your help with this. I guess it doesn't quite click with me why null results can be found using Equal (==) but cannot be excluded using Unequal (!=). As pointed out, to do the latter, I must convert null results to strings, as "Null", use Unsame, or otherwise simply delete these cases. Regards, Gregory