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Re: is_real_vector() missing?


From: Avinoam Kalma
Subject: Re: is_real_vector() missing?
Date: Sat, 8 Nov 2014 22:48:51 +0200

> -----Original Message-----
> Date: Sat, 8 Nov 2014 13:17:49 -0500
> From: Doug Stewart <address@hidden>
> To: notMyUsername <address@hidden>
> Cc: address@hidden
> Subject: Re: is_real_vector() missing?
> Message-ID:
> 
> On Sat, Nov 8, 2014 at 12:35 PM, notMyUsername <address@hidden>
> wrote:
> 
> > Posting to add:
> >
> > octave:1> pkg load control signal general
> > octave:2> h = tf([1],[1 2 3]);
> > error: 'is_real_vector' undefined near line 38 column 15
> > error: called from:
> > error:   /Users/me/octave/control-2.6.6/@tfpoly/tfpoly.m at line -1,
> column
> > -1
> > error:   /Users/me/octave/control-2.6.6/__vec2tfpoly__.m at line 32,
> column
> > 7
> > error:   /Users/me/octave/control-2.6.6/@tf/tf.m at line 223, column
> 13
> >
> >
> >
> > -
> 
> 
> 
> my system says:
> 
> which is_real_vector
> 'is_real_vector' is a function from the file
> /home/doug/octave/control-2.6.5/x86_64-pc-linux-gnu-api-
> v49+/is_real_vector.oct
> 
> 
> I have control-2.6.5   and you have control-2.6.6
> 
> 
> Is this your problem

Hi,

Using this command with Octave 3.8.2. & control-2.6.6 in works without
error.

>> ver 
GNU Octave Version 3.8.2
GNU Octave License: GNU General Public License
Operating System: MINGW32_NT-6.1 Windows 7 Service Pack 1 i686
----------------------------------------------------------------------
Package Name  | Version | Installation directory
--------------+---------+-----------------------
     control *|   2.6.6 |
...\Octave-3.8.2\share\octave\packages\control-2.6.6
     general *|   1.3.4 |
...\Octave-3.8.2\share\octave\packages\general-1.3.4
       image *|   2.2.2 | ...\Octave-3.8.2\share\octave\packages\image-2.2.2
      signal *|   1.3.0 |
...\Octave-3.8.2\share\octave\packages\signal-1.3.0

>>  h = tf([1],[1 2 3])

Transfer function 'h' from input 'u1' to output ...

            1
 y1:  -------------
      s^2 + 2 s + 3

Continuous-time model.

Avinoam





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