These functions are were deprecated in 2009 and are now defunct.

```
av.plot(...)
av.plots(...)
box.cox(...)
bc(...)
box.cox.powers(...)
box.cox.var(...)
box.tidwell(...)
cookd(...)
confidence.ellipse(...)
ceres.plot(...)
ceres.plots(...)
cr.plot(...)
cr.plots(...)
data.ellipse(...)
durbin.watson(...)
levene.test(...)
leverage.plot(...)
leverage.plots(...)
linear.hypothesis(...)
ncv.test(...)
outlier.test(...)
qq.plot(...)
skewPower(...)
spread.level.plot(...)
```

- ...
pass arguments down.

`av.plot`

and `av.plots`

are replaced by `avPlot`

and `avPlots`

functions.

`box.cox`

and `bc`

are now replaced by `bcPower`

.

`box.cox.powers`

is replaced by `powerTransform`

.

`box.cox.var`

is replaced by `boxCoxVariable`

.

`box.tidwell`

is replaced by `boxTidwell`

.

`cookd`

is replaced by `cooks.distance`

in the stats package.

`confidence.ellipse`

is replaced by `confidenceEllipse`

.

`ceres.plot`

and `ceres.plots`

are now replaced by the `ceresPlot`

and `ceresPlots`

functions.

`cr.plot`

and `cr.plots`

are now replaced by the `crPlot`

and `crPlots`

functions.

`data.ellipse`

is replaced by `dataEllipse`

.

`durbin.watson`

is replaced by `durbinWatsonTest`

.

`levene.test`

is replaced by `leveneTest`

function.

`leverage.plot`

and `leverage.plots`

are now replaced by the `leveragePlot`

and `leveragePlots`

functions.

`linear.hypothesis`

is replaced by the `linearHypothesis`

function.

`ncv.test`

is replaced by `ncvTest`

.

`outlier.test`

is replaced by `outlierTest`

.

`qq.plot`

is replaced by `qqPlot`

.

`skewPower`

is replaced by `bcnPower`

.

`spread.level.plot`

is replaced by `spreadLevelPlot`

.