dials (version 0.1.0)

scale_pos_weight: Parameters for possible engine parameters for xgboost

Description

These parameters are auxiliary to tree-based models that use the "xgboost" engine. They correspond to tuning parameters that would be specified using set_engine("xgboost", ...).

Usage

scale_pos_weight(range = c(0.8, 1.2), trans = NULL)
penalty_L2(range = c(-10, 1), trans = log10_trans())
penalty_L1(range = c(-10, 1), trans = log10_trans())

Arguments

range

A two-element vector holding the defaults for the smallest and largest possible values, respectively.

trans

A trans object from the scales package, such as scales::log10_trans() or scales::reciprocal_trans(). If not provided, the default is used which matches the units used in range. If no transformation, NULL.

Details

For more information, see the xgboost webpage.

Examples

# NOT RUN {
scale_pos_weight()
penalty_L2()
penalty_L1()

# }