User`s guide

1 Data Processing
Tip You can use data.y as an alternative to data .OutputData to access the
output values, or use
data.u as an alternative to data.InputData to access
the input values.
An iddata object containing frequency-domain data includes
frequency-specific properties, such as
Frequency for the frequency vector and
Units for frequency units (ins tead of Tstart and SamplingIntervals).
To view the property list, type the following command sequence at the prompt:
% Load input u2 and output y2
load dryer2;
% Create iddata object
data = iddata(y2,u2,0.08);
% Take the Fourier transform of the data
% transforming it to frequenc y domain
data = fft(data)
% Get property values of data
get(data)
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