coef.boostrq {boostrq}

estimated coefficients of boosting regression quantiles

Description

estimated coefficients of boosting regression quantiles

Usage

## S3 method for class 'boostrq'
coef(object, which = NULL, aggregate = "sum", ...)

Arguments

object

object of class boostrq

which

a subset of base-learners

aggregate

a character specifying how to aggregate coefficients of single base learners. The default returns the coefficient for the final number of boosting iterations. "cumsum" returns a list with matrices (one per base-learner) with the cumulative coefficients for all iterations. "none" returns a list of matrices where the jth columns of the respective matrix contains coefficients of the base-learner of the jth boosting iteration.v "sum_aggr" ...

...

additional arguments passed to callies

Value

coef extracts the regression coefficients of the fitted boostrq model.

Examples

boosted.rq <-
boostrq(
 formula = mpg ~ brq(cyl * hp) + brq(am + wt),
 data = mtcars,
 mstop = 200,
 nu = 0.1,
 tau = 0.5
)

coef(boosted.rq, aggregate = "cumsum")