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 quasi-likelihood models),
divided by the residual degrees of freedom.

For likelihood (not quasi-likelihood) models, the estimate is 1.0.

### Usage

rv(fit)

### Arguments

### Value

Returns the residual variance estimate from the `"locfit"`

object.

### See Also

locfit, rv<-

### Examples

data(ethanol)
fit <- locfit(NOx~E,data=ethanol)
rv(fit)

[Package

*locfit* version 1.1-9

Index]