fwdtrMlePlot {Rfwdmv} | R Documentation |
Produces a plot of maximum likelihood estimates of transformation parameters during all steps of the forward search.
fwdtrMlePlot(x, psfrag.labels = FALSE)
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. |
Estimates that vary wildly are associated with variables that do no have to be transformed.
an empty list is invisibly returned
Fabrizio Laurini
Atkinson, A. C., Riani, M. and Cerioli, A. (2004) Exploring Multivariate Data with the Forward Search. Springer-Verlag New York.
## 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)