Articles published in the May 2008 issue of R News
Editorial
John Fox 1
Using Sweave with LyX
Gregor Gorjanc 2
Trade costs
Jeff Enos, David Kane, Arjun Ravi Narayan, Aaron Schwartz, Daniel Suo and Luyi Zhao 10
Survival analysis for cohorts with missing covariate information
Hormuzd A. Katki and Steven D. Mark 14
Segmented: An R package to fit regression models with broken-line relationships
Vito M. R. Muggeo 20
Bayesian estimation for parsimonious threshold autoregressive models in R
Cathy W. S. Chen, Edward M. H. Lin, F. C. Liu and Richard Gerlach 26
Statistical modeling of loss distributions using actuar
Vincent Goulet and Mathieu Pigeon 34
Programmers’ Niche: Multivariate polynomials in r
Robin K. S. Hankin 41
R Help Desk: How can I avoid this loop or make it faster?
Uwe Ligges and John Fox 46
R Help Desk
Uwe Ligges and John Fox 46
Changes in R Version 2.7.0
R Core Team 51
Changes on CRAN
Kurt Hornik 59
News from the Bioconductor Project
Bioconductor Team 69
Forthcoming Events: useR! 2008
Uwe Ligges, Achim Zeileis, Claus Weihs, Gerd Kopp, Friedrich Leisch and Torsten Hothorn 70
R Foundation News
Kurt Hornik 71
R News Referees 2007
John Fox 72