User`s guide

Using Frequency-Response Plots to Validate Models
Frequency Function Plot Settings (Continued)
Action
Command
Change the frequency
values for com puting the
noise spectrum.
The default frequency
vector is 128 linearly
distributed values, greater
than zero and less than
or equal to the Nyquist
frequency.
Select Options > Frequency range and
specify a new frequency vector in units of
rad/s.
Enter the frequency vector u sing any one of
followin g methods:
• MATLAB expression, such as
[1:100]*pi/100 or logspace( -3,- 1,200).
Cannot contain variables in the M ATLAB
workspace.
• Row vector of values, such as
[1:.1:100]
Note To restore the default frequency vector,
enter
[].
Change frequency units
between hertz and radians
per second.
Select Style > Frequency (Hz) or
Style > Frequency (rad/s).
Change frequency scale
between linear and
logarithmic.
Select Style > Linear frequency scale or
Style > Log frequency scale.
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