User`s guide

Representing Time- and Frequency-Domain Data Using iddata Objects

MATLAB returns the following object properties and values:

Domain: 'Time'

Name: []

OutputData: [10 00x1 double]

y: 'Same as OutputData'

OutputName: {'y 1'}

OutputUnit: {'' }

InputData: [10 00x1 double]

u: 'Same as InputData'

InputName: {'u 1'}

InputUnit: {'' }

Period: Inf

InterSample: 'zoh'

Ts: 0.0800

Tstart: []

SamplingInstants: [1000x0 double]

TimeUnit: ''

ExperimentName: 'Exp1'

Notes: []

UserData: []

For a complete description of all properties, see the iddata reference page or

type

idprops iddata at the prompt.

You can specify properties when y ou create an

iddata object using the

constructor syntax:

data = iddata(y,u,Ts,'Property1',Value1,...,'Propert yN',ValueN)

To change property values for an existing iddata object, use the set command

or dot notation. For example, to change the sampling interval to

0.05,type

the following at the prompt:

set(data,'Ts',0.05)

or equivalently:

data.ts = 0.05

Property names are not case sensitive. You do not need to type the entire

property name if the ﬁrst few letters uniquely identify the property.

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