Once the frequencies have been specified, a plot command starts analysis at these frequencies. This command is
plot: [<FreqPlotSpec>]* ;where <FreqPlotSpec> can be one of the following.
<transfer function>This chapter explains some of these specifications. Others follow later.
magn( <transfer function> )
phase( <transfer function> )
delay( <transfer function> )
db( <transfer function> )
The plot command writes its results to a plot file. Another program, such as gnuplot, may read this file and produce an actual plot. Alternatively, the xplot command will open an X window and present the plot it it. This window allows zooming by dragging the mouse over the plot with the right mouse button down. Pressing the key ``f'' will fit the plot data in the window, the key ``g'' toggles the grid, and the keys ``q'' or ``c'' will close the window.