I can't plot transfer functions higher than 3. order with command "bode"!

I define a transfer function and want to plot it with command bode as follows:

t=tf('s');

p=(s+1)*(s+2)/((s+3)*(s+4)*(s+5));

bode(p);

this gives me the following errors:

Error using  .* 
Matrix dimensions must agree.

Error in freqgrid>LocalAddPhaseExtrema (line 342)
d1 = den(end:-2:1);     d1 = fliplr(d1 .* altsgn(1:length(d1)));

Error in freqgrid (line 139)
   w = LocalAddPhaseExtrema(w,z{1},p{1});

Error in ltipack.ltidata/freqresp (line 46)
   w = freqgrid(z,p,Ts,Grade,Focus);

Error in resppack.ltisource/magphaseresp (line 35)
         [mag,phase,w,FocusInfo] = freqresp(SysData(ct),grade,wspec,true);

Error in wavepack.waveform/draw (line 26)
   feval(this.DataFcn{:});

Error in wrfc.plot/draw (line 18)
      draw(wf)

Error in wrfc.plot/init_listeners>LocalRefreshPlot (line 122)
   draw(this)

Warning: Error occurred while evaluating listener callback. 
> In DynamicSystem.bodeplot at 141
  In DynamicSystem.bode at 96

when I define p as a function of only second order the above code works without problem! what am I doing wrong? may I change any settings somewhere? (I use matlab version R2013b)

[francisco]

I'm having this error too, did you fixed it? it doesn't even work with the example code of the "bode" function (for an 3 order transfer fuction).

Answer 1

[Azzi Abdelmalek]

s=tf('s');
p=(s+1)*(s+2)/((s+3)*(s+4)*(s+5));
bode(p);

[Rakesh]

Other errors gone. Still i get

Error using + (line 63)

Matrix dimensions must agree.

Please advice