rv {locfit}  R Documentation 
Residual variance from a locfit object.
Description
As part of the locfit
fitting procedure, an estimate
of the residual variance is computed; the rv
function extracts
the variance from the "locfit"
object.
The estimate used is the residual sum of squares
(or residual deviance, for quasilikelihood models),
divided by the residual degrees of freedom.
For likelihood (not quasilikelihood) models, the estimate is 1.0.
Usage
rv(fit)
Arguments
fit 

Value
Returns the residual variance estimate from the "locfit"
object.
See Also
Examples
data(ethanol)
fit < locfit(NOx~E,data=ethanol)
rv(fit)
[Package locfit version 1.59.10 Index]