Re: Extracting Matrix
- To: mathgroup at smc.vnet.net
- Subject: [mg45412] Re: Extracting Matrix
- From: Yasvir Tesiram <tesiramy at omrf.ouhsc.edu>
- Date: Tue, 6 Jan 2004 04:17:35 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Hi, Here's one way, X = FlattenAt[CovarianceMatrix/.z)/.MatrixForm->List,1] Yas On Mon, 5 Jan 2004, Bruce W. Colletti wrote: > > Re Mathematica 5.0 running under WinXP Home. > > Am using... > > z = Regress[...RegressionReport->CovarianceMatrix]; > X = CovarianceMatrix /. z; > > ...to extract the given matrix. > > However, when I use X[[k,k]] to access the k'th diagonal element, I get > a row instead! The culprit is that MatrixForm is the X-head (as > FullForm reveals). > > How can I strip away this head and make X a list of lists? > > Thankx. > > Bruce >