ltiview (Control System Toolbox)

Initialize an LTI Viewer for LTI system response analysis

Syntax

ltiview
ltiview(plottype,sys)
ltiview(plottype,sys,extras)

ltiview(plottype,sys1,sys2,...sysN)
ltiview(plottype,sys1,sys2,...sysN,extras)
ltiview(plottype,sys1,PlotStyle1,sys2,PlotStyle2,...)

Description

ltiview

when invoked without input arguments, initializes a new LTI Viewer for LTI system response analysis.

Only frequency-domain analysis functions can be applied to FRDs.

ltiview(plottype,sys)

initializes an LTI Viewer containing the LTI response type indicated by plottype for the LTI model sys. The string plottype can be any one of the following:

'step'
'impulse'
'initial'
'lsim'
'pzmap'
'bode'
'nyquist'
'nichols'
'sigma'

or, plottype can be a cell vector containing up to six of these plot types.

For example,

ltiview({'step';'nyquist'},sys)

displays the plots of both of these response types for a given system sys.

ltiview(plottype,sys,extras)

allows the additional input arguments supported by the various LTI model response functions to be passed to the ltiview command.

extras is one or more input arguments as specified by the function named in plottype. These arguments may be required or optional, depending on the type of LTI response. For example, if plottype is 'step' then extras may be the desired final time, Tfinal, as shown below.

ltiview('step',sys,Tfinal)

However, if plottype is 'initial', the extras arguments must contain the initial conditions x0 and may contain other arguments, such as Tfinal.

ltiview('initial',sys,x0,Tfinal)

See the individual references pages of each possible plottype commands for a list of appropriate arguments for extras.

Finally,

ltiview(plottype,sys1,sys2,...sysN)
ltiview(plottype,sys1,sys2,...sysN,extras)
ltiview(plottype,sys1,PlotStyle1,sys2,PlotStyle2,...)

initializes an LTI Viewer containing the responses of multiple LTI models, using the plot styles in PlotStyle, when applicable. See the individual reference pages of the LTI response functions for more information on specifying plot styles.

Example

See Chapter 6, "The LTI Viewer."