TITLE(boxcoxplot @@ Finding a Transformation)
USAGE(
boxcoxplot(data, group, p=seq(-1,2,length=20))
)
ARGUMENTS(
ARG(data @@ a (numeric) vector containing the data.)
ARG(group @@ an optional vector which specifies the
grouping of the data.)
ARG(p @@ a vector containing the powers.)
)
DESCRIPTION(
LANG(boxcoxplot) draws a plot of the Box-Cox
profile likelihood for the powers in the vector LANG(p).
This is used for selecting a power transformation for
symmetrising a single batch (if the argument LANG(group) is missing),
or normalising the data in a one-way ANOVA (if the argument
LANG(group) is present).
)
