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zp2sys and bode plot
From: |
Giovanni Visciano |
Subject: |
zp2sys and bode plot |
Date: |
Sat, 13 Dec 2003 22:15:05 +0100 |
Hi,
I have compiled 2.1.50, on debian debian woody.
> s = zp2sys([],[-1],1);
> sysout (s)
Input(s)
1: u_1
Output(s):
1: y_1
zero-pole form:
1
---------
(s + 1)
> bode(s)
error: number of columns must match (2 != 1)
error: evaluating assignment expression near line 97, column 7
error: evaluating if command near line 71, column 3
error: called from `sysgroup' in file
`/home/gio/Octave-2.1.50/share/octave/2.1.50/m/control/system/sysgroup.m'
error: evaluating assignment expression near line 96, column 9
error: evaluating if command near line 65, column 3
error: called from `sysmult' in file
`/home/gio/Octave-2.1.50/share/octave/2.1.50/m/control/system/sysmult.m'
error: evaluating assignment expression near line 146, column 11
error: evaluating while command near line 95, column 3
error: called from `zp2ss' in file
`/home/gio/Octave-2.1.50/share/octave/2.1.50/m/control/system/zp2ss.m'
error: evaluating if command near line 109, column 5
error: evaluating if command near line 107, column 3
error: called from `sysupdate' in file
`/home/gio/Octave-2.1.50/share/octave/2.1.50/m/control/system/sysupdate.m'
error: evaluating assignment expression near line 153, column 9
error: evaluating if command near line 152, column 3
error: called from `sysgetsignals' in file
`/home/gio/Octave-2.1.50/share/octave/2.1.50/m/control/system/sysgetsignals.m'
error: called from `bode' in file
`/home/gio/Octave-2.1.50/share/octave/2.1.50/m/control/base/bode.m'
> s = tf2sys([1],[1 1]);
> sysout (s)
Input(s)
1: u_1
Output(s):
1: y_1
transfer function form:
1
---------
1*s^1 + 1
> bode(s)
"ok plotting..."
what's wrong?
Thanks, Giovanni
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