Assigning names to columns of a matrix
- To: mathgroup at smc.vnet.net
- Subject: [mg49438] Assigning names to columns of a matrix
- From: Gregory Lypny <gregory.lypny at videotron.ca>
- Date: Tue, 20 Jul 2004 07:53:28 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hello everyone, I'm starting an analysis of a 7,320 x 16 matrix of data called sessionAData. I'd like to assign a name to each of the 16 columns, that is, the variables, so that I can refer to them by name and not waste memory. Would I, for example, simply create new vectors from each column of the matrix, such as investmentWeight = sessionAData[[All,6]] to create a variable called "investmentWeight" equal to the sixth column of the matrix? Or should I use Take as in investmentWeight = Take[sessionAData[[All,6]]] ? Greg