[Octave-bug-tracker] [bug #35360] margin.m error: `Ts' undefined near line 300 column 62 for discrete systems

[Renato Caldas]

URL:
  <http://savannah.gnu.org/bugs/?35360>

                 Summary: margin.m error: `Ts' undefined near line 300 column
62 for discrete systems
                 Project: GNU Octave
            Submitted by: seventhguardian
            Submitted on: Ter 24 Jan 2012 14:23:20 GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

When calling margin.m with a discrete system I get this error.

The problem is that the sampling time is retrived here:


(...)
[num, den, tsam] = tfdata (sys);
(...)


But on line 300 an attempt is made to use the undefined variable "TS":

if (continuous)
  xl_str = "Frequency [rad/s]";
else
  xl_str = sprintf ("Frequency [rad/s]     w_N = %g", pi/Ts);
endif


Changing "Ts" for "tsam" solves this:

if (continuous)
  xl_str = "Frequency [rad/s]";
else
  xl_str = sprintf ("Frequency [rad/s]     w_N = %g", pi/tsam);
endif






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