fwdtrMlePlot {Rfwdmv}R Documentation

Plot method for fwdtr objects

Description

Produces a plot of maximum likelihood estimates of transformation parameters during all steps of the forward search.

Usage

fwdtrMlePlot(x, psfrag.labels = FALSE)

Arguments

x a fwdtr object.
psfrag.labels a logical value. If TRUE then the x, y, and main labels are set to "xlab", "ylab", and "main" for replacement via the psfrag utility.

Details

Estimates that vary wildly are associated with variables that do no have to be transformed.

Value

an empty list is invisibly returned

Author(s)

Fabrizio Laurini

References

Atkinson, A. C., Riani, M. and Cerioli, A. (2004) Exploring Multivariate Data with the Forward Search. Springer-Verlag New York.

See Also

fwdtr.object

Examples

## Forward search on untrasformed data 

 data(mussels.dat)
 l.mle<-fwdtr(mussels.dat)

## Plot maximum likelihood estimates of the trasnformation parameters
## in each step of the forward search 

fwdtrMlePlot(l.mle)

 
## Test variables 2 and 5
## The forward is based on untransformed data for variables 1, 3 and 4
## sqrt for variable 2 and third root for variable 5

 l.mle <- fwdtr(mussels.dat, lambda = c(0.5, 1/3), col.to.transform = c(2,5))

## plot trajectories of maximum likelihood estimates of transformation parameters
## for variables 2 and 5

fwdtrMlePlot(l.mle)

[Package Rfwdmv version 0.72-2 Index]