dse (version 2007.7-1)

reachability: Calculate Model Reachability Matrix

Description

Calculate the singular values of the reachability matrix of a model.

Usage

reachability(model)
    ## S3 method for class 'ARMA':
reachability(model)
    ## S3 method for class 'SS':
reachability(model)
    ## S3 method for class 'TSestModel':
reachability(model)

Arguments

model

An object containing TSmodel.

Value

• The singular values of the reachability matrix.

concept

DSE

Details

If all singular values are significantly different from zero the model is controllable.

See Also

observability, stability roots McMillanDegree

Examples

data("eg1.DSE.data.diff", package="dse1")
model <- toSS(estVARXls(eg1.DSE.data.diff))
reachability(model)