You can use any of the plot editing toolbar buttons to change the properties of your plot.
Analysis Parameters are parameters that apply to the displayed analyses. To display them, right-click in the plot area and select Analysis Parameters from the menu. (Note that you can access the menu only if the Edit Plot button is inactive.) The following analysis parameters are displayed. (If more than one response is displayed, parameters applicable to each plot are displayed.) Not all of these analysis fields are displayed for all types of plots:
Normalized Frequency — if checked, frequency is normalized between 0 and 1, or if not checked, frequency is in Hz
Frequency Scale — y-axis scale
Frequency Range — range of the frequency axis or
Specify freq. vector
Number of Points — number of samples used to compute the response
Frequency Vector — vector to use for plotting, if
Specify freq. vector is selected in Frequency
Magnitude Display — y-axis units
Phase Units — y-axis units
Phase Display — type of phase plot
Group Delay Units — y-axis units
Specify Length — length type of impulse or step response
Length — number of points to use for the impulse or step response
In addition to the above analysis parameters, you can change the plot type for Impulse and
Step Response plots by right-clicking and selecting Line with
Marker, Stem or Line
from the context menu. You can change the x-axis units by right-clicking
the x-axis label and selecting
To save the displayed parameters as the default values to use when Filter Designer or FVTool is opened, click Save as default.
To restore the default values, click Restore original defaults.
Data tips display information about a particular point in the plot. See Interactively Explore Plotted Data for information on data tips.
If you have the DSP System Toolbox™ software, FVTool displays a specification mask along with your designed filter on a magnitude plot.
You can zoom to the passband region by clicking View > Passband. To use passband zoom, your filter must have been designed using
fdesign or Filter Designer. Passband zoom is not provided for
cascaded integrator-comb (CIC) filters because CICs do not have conventional