R News Volume 6/2

Articles published in the May 2006 issue of R News

Complete issue

Table of contents

Paul Murrell 1

Contributed Research Articles

S4 classes for distributions
Peter Ruckdeschel, Matthias Kohl, Thomas Stabla and Florian Camphausen 2

The regress function
David Clifford and Peter McCullagh 6

Processing data for outliers
Lukasz Komsta 10

Analysing equity portfolios in R
David Kane and Jeff Enos 13

GroupSeq: Designing clinical trials using group sequential designs
Roman Pahl, Andreas Ziegler and Inke R. König 21

Using R/Sweave in everyday clinical practice
Sven Garbade and Peter Burgard 26

changeLOS: An R-package for change in length of hospital stay based on the Aalen-Johansen estimator
M. Wangler, J. Beyersmann and M. Schumacher 31

Balloon plot
Nitin Jain and Gregory R. Warnes 35

Drawing pedigree diagrams with R and graphviz
Jing Hua Zhao 38

Non-standard fonts in PostScript and PDF graphics
Paul Murrell and Brian Ripley 41

The doBy package
Søren Højsgaard 47

Normed division algebras with R: Introducing the onion package
Robin K. S. Hankin 49

Electrical properties of resistor networks
Robin K. S. Hankin 52

News and Notes

Resistor networks R: Introducing the ResistorArray package
Robin K. S. Hankin 52

Changes in R
R Core Team 54

The good, the bad, and the ugly—Review of Paul Murrell’s new book: “R Graphics”
David Meyer 54

Changes on CRAN
Kurt Hornik 64

News from the Bioconductor Project
Seth Falcon 70

R Foundation News
Kurt Hornik 70

Forthcoming Events: DSC 2007
Paul Murrell, Ross Ihaka, David Scott and Thomas Yee 71