Re: Selecting Rows Where All Columns Satisfy a Condition
- To: mathgroup at smc.vnet.net
- Subject: [mg82644] Re: Selecting Rows Where All Columns Satisfy a Condition
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Fri, 26 Oct 2007 05:36:48 -0400 (EDT)
- Organization: Uni Leipzig
- References: <ffppu6$l6g$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi, Select[X,FreeQ[#,-9] &] ?? Regards Jens Gregory Lypny wrote: > Hello everyone > > I've got an Nx4 numeric array called X. I'd like to pull out all > rows where -9 does not appear in any of the four columns. I know I > can this: > > Select[X, #[[1]] != -9 && #[[2]] != -9 && #[[3]] != -9 && #[[4]] != > -9 &] > > But is there a more elegant way that applies the not-equal-to > condition to each column without having to repeat it? > > Regards, > > Gregory >