User`s guide

1 Data Processing

3 Specify the following options:

Note For time series, only import the o utput signal and enter [] for t he

input.

• Input — E nter the MATLAB variable name (column vector or matrix)

or a MATLAB expression that represents the input data. The expression

must evaluate to a column vector or matrix.

• Output — Enter the MATLAB variable name (column vector or

matrix) or a MATLAB expression that represents the output data. The

expression must evaluate to a column v ector or matrix.

• Data name — Enter the name of the data set, which a ppears in

the S ystem Identi ﬁcation Too l window afte r the import operation i s

completed.

• Starting time —Enterthestartingvalueofthetimeaxisfortimeplots.

• Sampling interval — Enter the actual sampling interval in the

experiment. F or more information about this setting, see “Specifying the

Data Sampling Interval” on page 1-28.

Tip The System Identiﬁcation Toolbox product uses the sampling

interval during model estimation and to set the horizontal axis on time

plots. If you transform a time-domain signal to a frequency-domain

signal, the Fourier transforms are computed as dis crete Fourier

transforms (DFTs) u sing this sampling interval.

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