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Estimation and inference methods for models of conditional quantiles: Linear and nonlinear parametric and nonparametric (total variation penalized) models for conditional quantiles of a univariate response and several methods for handling censored survival data. Portfolio selection methods based on expected shortfall risk are also included.
Package details 


Author  Roger Koenker [cre, aut], Stephen Portnoy [ctb] (Contributions to Censored QR code), Pin Tian Ng [ctb] (Contributions to Sparse QR code), Achim Zeileis [ctb] (Contributions to dynrq code essentially identical to his dynlm code), Philip Grosjean [ctb] (Contributions to nlrq code), Brian D Ripley [trl, ctb] (Initial (2001) R port from S (to my everlasting shame  how could I have been so slow to adopt R!) and for numerous other suggestions and useful advice) 
Date of publication  20180202 21:20:14 UTC 
Maintainer  Roger Koenker <[email protected]> 
License  GPL (>= 2) 
Version  5.35 
URL  https://www.rproject.org 
Package repository  View on CRAN 
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