gbm-internals function

gbm internal functions

Helper functions for preprocessing data prior to building a "gbm"

object.

guessDist(y)

getCVgroup(distribution, class.stratify.cv, y, i.train, cv.folds, group)

getStratify(strat, d)

checkMissing(x, y)

checkWeights(w, n)

checkID(id)

checkOffset(o, y)

getVarNames(x)

gbmCluster(n)

Arguments

• y: The response variable.
• class.stratify.cv: Whether or not to stratify, if provided by the user.
• i.train: Computed internally by gbm.
• cv.folds: The number of cross-validation folds.
• group: The group, if using distibution = "pairwise".
• strat: Whether or not to stratify.
• d, distribution: The distribution, either specified by the user or implied.
• x: The design matrix.
• w: The weights.
• n: The number of cores to use in the cluster.
• id: The interaction depth.
• o: The offset.

Details

These are functions used internally by gbm and not intended for direct use by the user.