User`s guide

LTI Properties
2-37
This produces
Transfer function from input "thrust" to output "velocity":
1
------
p + 10
Note how the display reflects the input and output names and the variable
selection.
In the MIMO case, use cell vectors of strings to specify input or output channel
names. For e xample, type
num = {3 , [1 2]};
den = {[1 10] , [1 0]};
H = tf(num,den); % H(s) has one output and two inputs
set(H,'inputname',{'temperature' ; 'pressure'})
The specified input names appear in the display of H.
Transfer function from input "temperature" to output:
3
------
s + 10
Transfer function from input "pressure" to output:
s + 2
-----
s
To leave certain names undefined, use t he empty string '' as in
H = tf(num,den,'inputname',{ 'temperature' ; '' })
Input Groups and Output Groups
In many applications, you may want to create several (distinct or intersecting)
groups of input or output channels and name these groups. For example, you
may want to label one set of input channels as
noise and another set as
controls.