Description Usage Format Acknowledgments Author(s) Source References See Also

Publicly available HIV clinical data from the Women's Interagency HIV cohort Study (WIHS).
The entire study enrolled 1164 women. Inclusion criteria of the study are: women at enrolment must be
(i) alive, (ii) HIV-1 infected, and (iii) free of clinical AIDS symptoms. Women were followed until the
first of the following occurred: (i) treatment initiation (HAART), (ii) AIDS diagnosis, (iii) death,
or administrative censoring. The studied outcomes were the competing risks "AIDS/Death (before HAART)"
and "Treatment Initiation (HAART)". However, for simplification purposes, only the first of the two competing events
(i.e. the time to AIDS/Death), was used. Likewise, for simplification in this clinical dataset example,
only complete cases were used. Variables included history of Injection Drug Use ("IDU")
at enrollment, African American ethnicity ('Race'), age ('Age'), and baseline CD4 count ('CD4') for a total of
*p=4* clinical covariates. The question in this dataset example was whether it is possible to achieve a
prognostication of patients for AIDS and HAART. See Bacon et al. (2005) and the WIHS
website for more details.

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Dataset consists of a `numeric`

`data.frame`

containing *n=485* complete observations (samples)
by rows and *p=4* clinical covariates by columns, not including the censoring indicator and (censored) time-to-event variables.
It comes as a compressed Rda data file.

This work made use of the High Performance Computing Resource in the Core Facility for Advanced Research Computing at Case Western Reserve University. This project was partially funded by the National Institutes of Health NIH - National Cancer Institute (R01-CA160593) to J-E. Dazard and J.S. Rao.

"Jean-Eudes Dazard, Ph.D." [email protected]

"Michael Choe, M.D." [email protected]

"Michael LeBlanc, Ph.D." [email protected]

"Alberto Santana, MBA." [email protected]

Maintainer: "Jean-Eudes Dazard, Ph.D." [email protected]

See real data application in Dazard et al., 2015.

Dazard J-E. and Rao J.S. (2017). "

*Variable Selection Strategies for High-Dimensional Survival Bump Hunting using Recursive Peeling Methods.*" (in prep).Diaz-Pachon D.A., Dazard J-E. and Rao J.S. (2017). "

*Unsupervised Bump Hunting Using Principal Components.*" In: Ahmed SE, editor. Big and Complex Data Analysis: Methodologies and Applications. Contributions to Statistics, vol. Edited Refereed Volume. Springer International Publishing, Cham Switzerland, p. 325-345.Yi C. and Huang J. (2016). "

*Semismooth Newton Coordinate Descent Algorithm for Elastic-Net Penalized Huber Loss Regression and Quantile Regression*." J. Comp Graph. Statistics, DOI: 10.1080/10618600.2016.1256816.Dazard J-E., Choe M., LeBlanc M. and Rao J.S. (2016). "

*Cross-validation and Peeling Strategies for Survival Bump Hunting using Recursive Peeling Methods.*" Statistical Analysis and Data Mining, 9(1):12-42.Dazard J-E., Choe M., LeBlanc M. and Rao J.S. (2015). "

*R package PRIMsrc: Bump Hunting by Patient Rule Induction Method for Survival, Regression and Classification.*" In JSM Proceedings, Statistical Programmers and Analysts Section. Seattle, WA, USA. American Statistical Association IMS - JSM, p. 650-664.Dazard J-E., Choe M., LeBlanc M. and Rao J.S. (2014). "

*Cross-Validation of Survival Bump Hunting by Recursive Peeling Methods.*" In JSM Proceedings, Survival Methods for Risk Estimation/Prediction Section. Boston, MA, USA. American Statistical Association IMS - JSM, p. 3366-3380.Dazard J-E. and J.S. Rao (2010). "

*Local Sparse Bump Hunting.*" J. Comp Graph. Statistics, 19(4):900-92.Bacon M.C., von Wyl V., Alden C. et al. (2005). "

*The Women's Interagency HIV Study: an observational cohort brings clinical sciences to the bench.*" Clin. Diagn. Lab. Immunol., 12(9):1013-1019.

Women's Interagency HIV cohort Study website: https://statepi.jhsph.edu/wihs/wordpress/

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