www.gusucode.com > mbcmodels 工具箱 matlab 源码程序 > mbcmodels/@xregtwostage/cov.m
function G= cov(TS) %COV % Copyright 2000-2005 The MathWorks, Inc. and Ford Global Technologies, Inc. if ~builtin('isempty',TS.covmodel) G= unstruct(TS.covmodel); if ~all(TS.RandomEffects) F= EffectsMatrix(TS); G= F*G*F'; end else G=[]; end