麻烦高手看一下:该小波分解重够哪里错了?

angang

<P>clear<BR>t=0:0.01:2*pi;<BR>if t&gt;0.2<BR>x=8*sin(60*pi*t+pi/3)+6*sin(240*pi*t+pi/2)...<BR>  +sin(300*pi*t+pi/6)+20*sin(500*pi*t+pi/3)*exp(-20*(t-0.2));<BR> else<BR> x=8*sin(60*pi*t+pi/3)+6*sin(240*pi*t+pi/2) +sin(300*pi*t+pi/6);<BR>end<BR>  figure(1)<BR>  subplot(2,1,1)<BR>  plot(x)<BR>  title('原始信号')<BR>  [t,d]=wpdec(x,3,'db1','shannon');<BR>  plottree(t)<BR><BR><BR><BR><BR>显示错误为:<BR>??? Error using ==&gt; wtreemgr<BR>*</P>
<P>Error in ==&gt; E:\MATLAB6p5\toolbox\wavelet\waveobsolete\plottree.m<BR>On line 35  ==&gt;     order = wtreemgr('order',Ts);</P>
<P>Error in ==&gt; e:\MATLAB6p5\work\xiaobofenxi.m<BR>On line 14  ==&gt;   plottree(t)<BR><BR>谢了  实在不知道哪里错了</P>

happy

<DIV class=quote><B>以下是引用<I>angang</I>在2006-4-2 21:12:38的发言：</B><BR>
<P>clear<BR>t=0:0.01:2*pi;<BR>if t&gt;0.2<BR>x=8*sin(60*pi*t+pi/3)+6*sin(240*pi*t+pi/2)...<BR>  +sin(300*pi*t+pi/6)+20*sin(500*pi*t+pi/3)*exp(-20*(t-0.2));<BR>else<BR>x=8*sin(60*pi*t+pi/3)+6*sin(240*pi*t+pi/2) +sin(300*pi*t+pi/6);<BR>end<BR>  figure(1)<BR>  subplot(2,1,1)<BR>  plot(x)<BR>  title('原始信号')<BR>  <FONT color=#ff0000>[t,d]=wpdec(x,3,'db1','shannon');<BR></FONT>  plottree(t)<BR><BR><BR><BR><BR>显示错误为:<BR>??? Error using ==&gt; wtreemgr<BR>*</P>
<P>Error in ==&gt; E:\MATLAB6p5\toolbox\wavelet\waveobsolete\plottree.m<BR>On line 35  ==&gt;     order = wtreemgr('order',Ts);</P>
<P>Error in ==&gt; e:\MATLAB6p5\work\xiaobofenxi.m<BR>On line 14  ==&gt;   plottree(t)<BR><BR>谢了  实在不知道哪里错了</P></DIV><BR>错误出在plottree中，matlab中没有自带这个函数吧<BR><FONT color=#ff0000>另外wpdec返回的应该是一个参数，你这样写成两个放回参数那都是0了</FONT>