From help-octave-request at bevo dot che dot wisc dot edu Sun Mar 18 09:59:06 2001 Subject: Errors in control toolbox demos From: Raimund Dold To: "octave-hlp ML" Date: Sun, 18 Mar 2001 17:02:15 +0100 Hi, I downloaded and compiled octave-2.1.33 and tried some of the examples and got some erros: - frdemo -> 1 -> 1 and after some returns I get the following error: zero-pole form: 10 (s - 1) ----------------- (s + 1) (s + 5) The bode plot command is identical to the tf form: Command: bode(sys2); Press a key to execute command executing error: logspace: arguments must be scalars error: evaluating if command near line 71, column 5 error: evaluating if command near line 68, column 3 error: called from `logspace' in file `/home/raimund/Private_Packages/share/octave/2.1.33/m/general/logspace.m' error: called from `__bodquist__' in file `/home/raimund/Private_Packages/share/octave/2.1.33/m/control/base/__bodquist__.m' error: called from `bode' in file `/home/raimund/Private_Packages/share/octave/2.1.33/m/control/base/bode.m' error: near line 28 of file `/home/raimund/Private_Packages/share/octave/2.1.33/m/control/util/run_cmd.m' error: called from `frdemo' in file `/home/raimund/Private_Packages/share/octave/2.1.33/m/control/base/frdemo.m' - hinfdemo -> m -> y (plot the step responses) I get the following error: FIGURE 2: speed refence => 0, pitch angle ref. => 1 =================================================== y1: speed (should remain 0) y2: pitch angle (should be 1) y3: thrust (should be a slow transient) y6: elevator (should be a faster transient) parse error near line 179 of file /home/raimund/Private_Packages/share/octave/2.1.33/m/control/system/c2d.m >>> elseif(strcmp(opt,"matched")) ^ error: `c2d' undefined near line 178 column 11 error: evaluating index expression near line 178, column 11 error: evaluating assignment expression near line 178, column 9 error: evaluating if command near line 108, column 3 error: called from `__stepimp__' in file `/home/raimund/Private_Packages/share/octave/2.1.33/m/control/base/__stepimp__.m' error: evaluating switch command near line 67, column 5 error: called from `step' in file `/home/raimund/Private_Packages/share/octave/2.1.33/m/control/base/step.m' error: evaluating switch command near line 150, column 1 error: near line 326 of file `/home/raimund/Private_Packages/share/octave/2.1.33/m/control/hinf/hinfdemo.m' Is this the right place to report this errors? Raimund ------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. Octave's home on the web: http://www.octave.org How to fund new projects: http://www.octave.org/funding.html Subscription information: http://www.octave.org/archive.html -------------------------------------------------------------