Demo of bode plot

Hello,

i have tried the demo program "Bode Plot of Dynamic System", but it doesn't work.

The error message is "warning: Error occurred while evaluating listener callback".

Attempt to execute SCRIPT norm as a function:

C:\Users\mji\Documents\MATLAB\norm.m

Error in freqfocus>LocalAdjustFocus (line 343)

if isnan(userFocus(2)) && norm(linDelay,1)>0

Error in freqfocus (line 73)

Focus = LocalAdjustFocus(Focus,UserFocus,Grade,w,mag,linDelay,Ts,nLF,nHF);

Error in ltipack.ltidata/freqresp (line 74)

FocusInfo = freqfocus(Focus,Grade,w,mag.*exp(1i*ph),z,p,Ts,linDelay,[]);

Error in resppack.ltisource/magphaseresp (line 33)

[mag,phase,w,FocusInfo] = freqresp(SysData(ct),grade,wspec,true);

Error in wavepack.waveform/draw (line 25)

feval(this.DataFcn{:});

Error in wrfc.plot/draw (line 17)

draw(wf)

Error in wrfc.plot/init_listeners>LocalRefreshPlot (line 79)

draw(this)

Could you help me to solve this problem?

Best regards

Ming

Answer 1

[Star Strider]

Re-name your ‘norm’ function to something that does not conflict with the name of any MATLAB function.

[Ming Jia]

Cheers! It is solved :)

[Star Strider]

Great!