SIQR: An R Package for Single-index Quantile Regression
Tianhai Zu and Yan Yu
, The R Journal (2021) 13:2, pages 460-470.
Abstract We develop an R package SIQR that implements the single-index quantile regression (SIQR) models via an efficient iterative local linear approach in Wu et al. (2010). Single-index quantile regression models are important tools in semiparametric regression to provide a comprehensive view of the conditional distributions of a response variable. It is especially useful when the data is heterogeneous or heavy-tailed. The package provides functions that allow users to fit SIQR models, predict, provide standard errors of the single-index coefficients via bootstrap, and visualize the estimated univariate function. We apply the R package SIQR to a well-known Boston Housing data.
Received: 2021-01-15; online 2021-10-19, supplementary material, (1.6 KiB)@article{RJ-2021-092, author = {Tianhai Zu and Yan Yu}, title = {{SIQR: An R Package for Single-index Quantile Regression}}, year = {2021}, journal = {{The R Journal}}, doi = {10.32614/RJ-2021-092}, url = {https://doi.org/10.32614/RJ-2021-092}, pages = {460--470}, volume = {13}, number = {2} }