RE: bode not working: sys undefined

[Uwe Heinz Rudi Dippel]

From: John W. Eaton address@hidden

The control system tools were
removed to a separate package in Octave 3.2.  Probably you need to
install that.  You can find the control package at octave.sf.net.


Thanks, John!

After installing the control package, the example you gave is working.

There are a number of warnings, though:
octave:9> pkg install control-1.0.11.tar.gz
warning: meaning may have changed due to change in precedence for && and || 
operators
warning: meaning may have changed due to change in precedence for && and || 
operators
warning: gen_doc_cache: unusable help text in 'packedform'. Ignoring function.

And more at the example:
octave:15> bode(sys)
warning: create_set is obsolete and will be removed from a future version of 
Octave, please use unique instead

I am just beginning with octave (and haven't used proprietary software for the 
last 10 years), and am still hopeful. We used Eidors for our research (with 
Matlab), and that colleague (using Matlab) left; and I was hoping to promote 
octave instead. Since the whole matter started for me by Eidors being broken at 
octave > 2.X, I now begin to wonder how much we can expect octave to be a fast 
moving target?

Another thing: using the basic example you gave, the plot totally overlaps the 
title of the lower diagram with the x-label of the upper plot. I attach a 
screenshot. Should I file this as a bug?

Thanks,

Uwe


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Screenshot-basic_bode_plot_overlap.png
Description: Screenshot-basic_bode_plot_overlap.png