Software

• QRS: Quantile rank score test for models with a random intercept effect (clustered data)

          The R code was written by Huixia Judy Wang. The original paper appeared in JASA (2007) with applications to GeneChip 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.

• EQRS: Enhanced quantile rank score test. 

          The R code was written by Huixia Judy Wang. The original paper appeared in Biometrics (2008). Download  the R code used for analyzing the Mice data

• Weighted score test for heteroscedastic models

          The R was written by Huixia Judy Wang. The original paper appeared in Statistica Sinica (2009). Download the R code for a simulated data set mimicing the swallow study.

• Quantile rank score test for fixed censored data

           The R code was written by Huixia Judy Wang. The original paper appeared in Annals of Statistics (2009).

• Lcrq: Locally weighted censored quantile regression.

          The R function was written by Huixia Judy Wang and Lan Wang. The original paper will appear in JASA (2009).

• Smoothed empirical likelihood for quantile regression with longitudinal data
• R functions used in the simulation
• Simulation study
• R functions used for the analysis of an ophthalmology data  
  

         

The research of Huixia Judy Wang was supported by NSF award DMS-07-06963