ctrlplot 221
ctrlplot
Syntax
graph = ctrlplot(pdm,old graph,{keywords})
Parameter List
Inputs: pdm Pdm (or matrix) containing the data to be plotted.
old
graph (optional) Graphical object to which data is added. Con-
ceptually the same as plot(pdm,{keep=old
graph}).
Keywords:
The following keywords specify the basic plot format. Only one can be selected.
timeresp (default) real(pdm) vs. domain. This is the same as the
default plot function and is suitable for time domain re-
sponses
bode Two subplots are generated: log magnitude vs. domain
and angle vs. domain. They are positioned one above the
other. If present, old
graph must also be in this format.
nyquist imag(pdm) vs. real(pdm). Standard Nyquist plot.
nichols log magnitude vs. angle. Standard Nichols chart.
logmagplot log magnitude vs. domain.
phaseplot angle vs. domain.
The following keywords specify whether the domain is log or linear scale. This is not
applicable to the Nyquist or Nichols plots. The defaults depend upon which of the above
control plot types has been selected.