LR.sarlm {spdep}R Documentation

Likelihood ratio test

Description

The function provides a likelihood ratio test for objects for which a logLik() function exists for their class, or for objects of class logLik.

Usage

LR.sarlm(x, y)
logLik.sarlm(object, ...)

Arguments

x a logLik object or an object for which a logLik() function exists
y a logLik object or an object for which a logLik() function exists
object a sarlm object from lagsarlm() or errorsarlm()
... other arguments to logLik()

Value

LR.sarlm() returns an object of class htest with:

statistic value of statistic
parameter degrees of freedom
p.value Probability value
estimate Log likelihood values of compared models
method "Likelihood ratio for spatial linear models"


logLik.sarlm() returns an object of class logLik

Note

The numbers of degrees of freedom returned by logLik.sarlm()

Author(s)

Roger Bivand Roger.Bivand@nhh.no

See Also

logLik.lm, anova.sarlm

Examples

data(columbus)
mixed <- lagsarlm(CRIME ~ HOVAL + INC, data=columbus, nb2listw(col.gal.nb),
  type="mixed")
error <- errorsarlm(CRIME ~ HOVAL + INC, data=columbus, nb2listw(col.gal.nb))
LR.sarlm(mixed, error)

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