Articles published in the April 2007 issue of R News
Editorial
Torsten Hothorn 1
Viewing binary files with the hexView package
Paul Murrell 2
FlexMix: An R package for finite mixture modelling
Bettina Grün and Friedrich Leisch 8
Using R to perform the AMMI analysis on agriculture variety trials
Andrea Onofri and Egidio Ciriciofolo 14
Inferences for ratios of normal means
Gemechis Dilba, Frank Schaarschmidt and Ludwig A. Hothorn 20
Working with unknown values
Gregor Gorjanc 24
A new package for fitting random effect models
Jochen Einbeck, John Hinde and Ross Darnell 26
Augmenting R with Unix tools
Andrew Robinson 30
POT: Modelling peaks over a threshold
Mathieu Ribatet 34
Backtests
Kyle Campbell, Jeff Enos, Daniel Gerlanc and David Kane 36
Review of John Verzani’s book: Using R for Introductory Statistics
Andy Liaw 41
DSC 2007
Hadley Wickham 42
Changes in R 2.5.0
R Core Team 43
Forthcoming Events: useR! 2007
Dianne Cook 43
New Journal: Annals of Applied Statistics
Bradley Efron 43
Changes on CRAN
Kurt Hornik 51
R Foundation News
Kurt Hornik 56
R News Referees 2006
Torsten Hothorn 56