Competing Risk Model with Frailties for Right Censored Survival Data CRAN Task View: Survival (http://CRAN.R-project.org/view=Survival) The package offers a fitting of smooth varying coefficients in a competing risks modelling of hazards as well as estimating of the frailties (or unobserved heterogenities) for clustered observations. Nonparametric penalized spline (p-spline) fitting of smooth covariates effects is proposed. As a spline basis truncated polynomial functions are chosen. The frailties are also fitted (via the EM-algoritghm) in a flexible way using a penalizied mixture of gamma distributions. Software Pavel Khomski <pkhomski@web.de> Pavel Khomski <pkhomski@web.de> GPL (>= 2) 2007-11-26 application/tgz http://CRAN.R-project.org/package=CompetingRiskFrailty