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Software

Software and Dataset


  • Yingying Zhang, Huixia Judy Wang & Zhongyi Zhu (2021) Single-index Thresholding in Quantile Regression, Journal of the American Statistical Association, DOI: 10.1080/01621459.2021.1915319. R Package SITQR & Documentation

  • Zhang, Y., Wang, H. and Zhu, Z. (2019). Quantile-regression-based clustering for panel data, Journal of Econometrics, DOI: 10.1016/j.jeconom.2019.04.005. R code for the simulation study


  • Li, F., Tang, Y. and Wang, H. (2019). Copula-based semiparametric analysis for time series data with detection limits, Canadian Journal of Statistics, DOI:10.1002/cjs.11503. R Package CopCTS

  • Tang, Y., Wang, H., Sun, Y. and Hering, A. (2019). Copula-based semiparametric models for spatio-temporal data, Biometrics, DOI:10.1111/biom.13066. R Package COST  & Documentation

  • Gao, Z., Tang, Y., Wang, H., Wu, G. and Lin, J. (2019). Automatic shape-constrained nonparametric regression. Technical Report.  R Package SCR

  • Wang, H., McKeague, I. and Qian, M. (2018). Testing for marginal linear effects in quantile regression, Journal of the Royal Statistical Society: Series B, 80, 433-452.   R package QMET    Help and Example File       HIV-EFV data

  • R Package AdjBQR (Adjusted Bayesian Quantile Regression Inference)

Reference:  Yang, Y., Wang, H. and He, X. (2016). Posterior inference in Bayesian quantile regression with asymmetric Laplace likelihood (Discussion Paper). International Statistical Review, 84, 327-344.


  • R package EXRQ (Extreme Regression of Quantiles)

  • Jiang, L., Bondell, H. and Wang, H. (2014). Interquantile shrinkage and variable selection in quantile regression. Computational Statistics and Data Analysis, 69, 208-219.

R functions


  • Wang, H. and Li, D. (2013). Estimation of conditional high quantiles through power transformation. Journal of the American Statistical Association, 108, 1062-1074.

  • Bernhardt, P., Wang, H., and Zhang, D. (2014). Flexible modeling of survival data with covariates subject to detection limits. Computational Statistics and  Data Analysis. 69, 81-91.

  • Bernhardt, P., Wang, H., and Zhang, D. (2013). Statistical methods for generalized linear models with covariates subject to detection limits.  Statistics in Biosciences, DOI 10.1007/s12561-013-9099-4.

Simulation code   Application code  Simulation data


  • Jiang, L., Wang, H. J., and Bondell, H. D. (2013). Interquantile shrinkage in regression models. Journal of Computational and Graphical Statistics, 22, 970-986.

R code    Help and Example file


  • Wang, H., Zhou, J., and Li, Y. (2013). Variable selection for censored quantile regression, Statistica
    Sinica
    , 23, 145-167.

  • Wang, H. and Feng, X. (2012). Multiple imputation for M-regression with censored covariates, Journal of American Statistical Association, 107, 194-204.

  • Wang, H., Stefanski, L., and Zhu, Z. (2012). Corrected-loss estimation for quantile regression with covariate measurement error. Biometrika, 99, 405-421.

  • Sun, Y., Wang, H., and Gilbert, P. B. (2011). Quantile regression for competing risks data with missing cause of failure, Statistica Sinica, 22, 703-728.

  • Pang, L., Lu, W., and Wang, H. (2012). Variance Estimation in Censored Quantile Regression via Induced Smoothing, Computational Statistics and Data Analysis, 56, 785-796.

  • Tang, Y., Wang, H., Zhu, Z. and Song, X. (2011). A unified variable selection approach for varying coefficient models. Statistica Sinica, 22, 601-628.

  • Wang, H. and Hu, J. (2010). Identification of differential aberrations in multiple-sample array CGH studies. Biometrics, 67, 353-362.

  • Wang, H., and Zhu, Z. (2010). Empirical likelihood for marginal regression models with longitudinal data. Journal of Statistical Planning and Inference. 141, 1603-1615.
R functions used in the Simulation study
R functions used for the analysis of an ophthalmology data

  • Wang, H., Zhu, Z., and Zhou, J. (2009). Quantile regression in partially linear varying coefficient models. Annals of Statistics, 37, 3841-3866.

  • Bondell, H. D., Reich, B. J., and Wang, H. (2010). Non-crossing quantile regression curve estimation. Biometrika. 97, 825-838. 

  • Reich, B. J., Bondell, H. D., and Wang, H. (2010). Flexible Bayesian quantile regression for independent and clustered data. Biostatistics, 11, 337-352.

R code for independent and clustered data using the conditional and marginal model.


  • Wang, H., and Wang, L. (2009). Locally weighted censored quantile regression. Journal of American Statistical Association, 104, 1117-1128.

  • Wang, H. and Fygenson, M. (2009). Inference for censored quantile regression models in longitudinal studies. Annals of Statistics, 37, 756-781.

  • Wang, H. (2009). Inference on quantile regression for heteroscedastic mixed models. Statistica Sinica, 19, 1247-1261.
R code for a simulated data set mimicking the swallow study

  • Wang, H. and He, X. (2008). An enhanced quantile approach for assessing differential gene expressions.  Biometrics, 449-457.

  • Wang, H. and He, X. (2007). Detecting differential expressions in GeneChip microarray studies: a quantile approach. Journal of American Statistical Association, 102, 104-112.
R code
Quantile rank score test for models with a random intercept effect (clustered data)
The R function is for more general models with a random intercept effect, and it can also be used for hypothesis testing for clustered data.

Acknowledgement:

The research of Huixia Judy Wang has been supported by NSF awards DMS-07-06963, DMS-10-07420, a NSF US-China Collaboration in Mathematical Research award, DMS-1149355, DMS-1712760 and KAUST OSR-2015-CRG4-2582.