Re: DeleteCases and multiple patterns
- To: mathgroup at smc.vnet.net
- Subject: [mg93960] Re: [mg93936] DeleteCases and multiple patterns
- From: "David Park" <djmpark at comcast.net>
- Date: Sun, 30 Nov 2008 06:57:01 -0500 (EST)
- References: <28970806.1227951410783.JavaMail.root@m02>
Use Alternatives. The vertical bar above the '\' character on the keyboard.
DeleteCases[mylist,{2,_,_}|{3,_,_}]
David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark
From: guerom00 [mailto:guerom00 at gmail.com]
Hello everyone :)
I have, say a list of list. Each element is a list of length 3 i.e.
myList={{x1,y1,z1},{x2,y2,z2},...{xN,yN,zN}}
Now, let's say I want to delete from this list the element which have
x=2 and 3 using DeleteCases.
This works :
DeleteCase[myList,{2,_,_}]
DeleteCases[myList,{3,_,_}]
but I would like to use
DeleteCases[myList,{{2,_,_},{3,_,_}}]
and this does not work...
How do I combine multiple patterns in DeleteCases ?
Thanks in advance.