www.gusucode.com > mbcmodels 工具箱 matlab 源码程序 > mbcmodels/@xreglinear/z21matrix.m
function z=z21matrix(m) %Z21MATRIX Z2.1 matrix % z=z21matrix(m,Xc) computes z21 matrix. % Requires QR data to be initialised % Copyright 2000-2007 The MathWorks, Inc. and Ford Global Technologies, Inc. if ~isfield(m.Store,'Q') error(message('mbc:xreglinear:InvalidState')); end if m.Store.DispOrder T = terms2(m); else T = Terms(m); end z2=m.Store.X(:,~T); % pad z2 z = z2- m.Store.Q*(m.Store.Q'*z2);