Creating and Manipulating Models | ![]() ![]() |
Accessing Property Values Using get
You access the property values of an LTI model sys
with get
. The syntax is
where the string PropertyName
is either the full property name, or any abbreviation with enough characters to identify the property uniquely. For example, typing
h = tf(100,[1 5 100],'inputname','voltage',... 'outputn','current',... 'notes','A simple circuit') get(h,'notes')
To display all of the properties of an LTI model sys
(and their values), use the syntax get(sys)
. In this example,
num = {[0 0 100]} den = {[1 5 100]} Variable = 's' Ts = 0 InputDelay = 0 OutputDelay = 0 ioDelay = 0 InputName = {'voltage'} OutputName = {'current'} InputGroup = {0x2 cell} OutputGroup = {0x2 cell} Notes = {'A simple circuit'} UserData = []
Notice that default (output) values have been assigned to any LTI properties in this list that you have not specified.
Finally, you can also access property values using direct structure-like referencing. This topic is explained in the next section.
![]() | Setting LTI Properties | Direct Property Referencing | ![]() |