rpart-internal: Internal Functions
In henckr/distRforest: Distribution-based Random Forest

Internal functions, only used by packages rpart and ipred.

pred.rpart(fit, x)
rpart.anova(y, offset, parms, wt)
rpart.class(y, offset, parms, wt)
rpart.matrix(frame)
rpart.poisson(y, offset, parms, wt)
rpartco(tree, parms)

`fit`	a tree fitted by `rpart`.
`x`	a matrix of predictors.
`y`	the responses.
`offset`	an offset, or `NULL`.
`parms`	a list of parameters, usually empty.
`wt`	case weights.
`frame`	model frame (from call to `rpart`)
`tree`	a tree fitted by `rpart`.

For rpartco the x,y plotting coordinates of the nodes.

rpart.anova, rpart.class and rpart.poisson return a list with components

`y`	(adjusting for `offset` if necessary),
`parms`	as input,
`numresp`	the number of responses,
`summary`	a function to be invoked by `summary.rpart`,
`text`	a function to be invoked by `text.rpart`.