User`s guide

Representing Data in the GUI

Physical Units of V ariables

• Input — Enter a string to specify the input units.

Tip When you have multiple inputs and outputs, enter a

comma-separated list of Input and Output units corresponding to each

channel.

• Output — Enter a string to specify the output units.

Notes — E nter comments about the experiment or the data. For

example, you might enter the experiment name, date, and a description

of experimental conditions. Models you estimate from this data inherit

your data notes.

6 Click Import.ThisactionaddsanewdataicontotheSystemIdentiﬁcation

Tool windo w.

7 Click Close to close the Import D ata dialog box.

Importing Amplitude and Phase Frequency-Response Data

To import frequency-response data consisting of amplitude and phase values

at speciﬁed frequencies:

1 Type the following command in the MATLAB Command Window to open

the GUI:

ident

2 In the System Identiﬁcation Tool window, select Import data > Freq.

domain data. This a ction opens the Import Data dialog box.

3 In the Data Format for Signals list, select Freq. Fu nction

(Amp/Phase).

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