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Expectile regression is a nice tool for estimating the conditional expectiles of a response variable given a set of covariates. This package implements a regression tree based gradient boosting estimator for nonparametric multiple expectile regression, proposed by Yang, Y., Qian, W. and Zou, H. (2018) <doi:10.1080/00949655.2013.876024>. The code is based on the 'gbm' package originally developed by Greg Ridgeway.
Package details 


Author  Yi Yang [aut, cre] (http://www.math.mcgill.ca/yyang/), Hui Zou [aut] (http://users.stat.umn.edu/~zouxx019/), Greg Ridgeway [ctb, cph] 
Maintainer  Yi Yang <yi.yang6@mcgill.ca> 
License  GPL3 
Version  1.4 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

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