www.gusucode.com > wavelet工具箱matlab源码程序 > wavelet/wavelet/@wptree/wprcoef.m
function x = wprcoef(t,node) %WPRCOEF Reconstruct wavelet packet coefficients. % X = WPRCOEF(T,N) computes reconstructed coefficients % of the node N of the wavelet packet tree T. % % X = WPRCOEF(T) is equivalent to X = WPRCOEF(T,0). % % See also WPDEC, WPDEC2, WPREC, WPREC2. % M. Misiti, Y. Misiti, G. Oppenheim, J.M. Poggi 12-Mar-96. % Last Revision: 20-Dec-2010. % Copyright 1995-2010 The MathWorks, Inc. % Check arguments. if nargin==1, node = 0; end if find(isnode(t,node)==0) error(message('Wavelet:FunctionArgVal:Invalid_NodVal')); end x = rnodcoef(t,node);