Re: Selecting Sub-lists After Split
- To: mathgroup at smc.vnet.net
- Subject: [mg77460] Re: Selecting Sub-lists After Split
- From: Donald DuBois <donabc at comcast.net>
- Date: Sat, 9 Jun 2007 05:35:03 -0400 (EDT)
> Hello everyone, > > Suppose I have a list of real number called myList. > I split it into > sub-lists of positive and negative numbers called > myNewList by doing > this (there may be a more elegant way): > > myNewList = Split[myList, #1 #2 > 0 &] > > Now, how can I select all of the sub-lists of > negative numbers from > myNewList? > > Any tips would be most appreciated. > > Regards, > > Gregory > Select[myNewList, Negative[First[#]] &] should accomplish it. Regards, Don