stepplot systems name

I use stepplot to generate step response plots, rather than just simply "step", as this allows me to change titles, labels and so on by just running a script instead of changing them in the property editor everytime.

I am hoping someone can kindly help me on naming of the systems name when using stepplot.

More specifically if this is what I am doing:

stepplot(SysMatrices.tf_Pn_Pnc, 10);

Can I then change the Systems name through some other way rather than changing the first argument.

Answer 1

[Teja Muppirala]

For one system:

sys = rss(3);
h = stepplot(sys1);
h.Response.Name = 'Bill';

Or multiple systems:

sys1 = rss(3);
sys2 = rss(3);

h = stepplot(sys1,sys2);

h.Response(1).Name = 'Mike';
h.Response(2).Name = 'Rudolph';

[Arnaud Miege]

Cool

Answer 2

[Arnaud Miege]

Is this just annotate the plot? If so, you can use legend:

sys = rss(3);
sys2 = rss(4);
stepplot(sys,sys2);
legend('sys1','sys2')

If that doesn't answer your question, can you clarify wheat you mean?

HTH,

Arnaud

[Ale]

Thanks for the answer Arnaud...

What I am getting at is that when I turn on the characteristics like peak response (by doing right click on the graph) can I change the name next to "System" without changing the names in the argument of the stepplot function.

so for example, (if sys is already a tf):

for k = 1:10

sys = k*sys;

stepplot(sys)

%% some function here to change that "sys" name???

end

Thanks Again,

Allen

[Arnaud Miege]

Not that I could find out, I think it takes whatever the name of the variable it's plotting to be the system name. You can, however, rename the I/O:

sys = tf(1,[1 1]);

for k = 1:10

sys_k(k) = k*sys;

end

h = stepplot(sys_k);

input_names = get(h,'InputName');

input_names{1} = 'My first input';

set(h,'InputName',input_names);

and the same with 'OutputName'.