[DirichletReg-News] DirichletReg 0.5-0 and Tech Report available

[Marco Maier]

Dear DirichletReg Users,

 

I have finally managed to fix some minor issues and implement requests in the new package version, 0.5-0, that is available via R-Forge (for Linux and Windows):

> install.packages("DirichletReg", repos="http://R-Forge.R-project.org")

 

I have migrated some routines to C (with the old “pure-R” routines as backups) and tried to streamline the code without breaking anything. Also, Hadley Wickham’s great package “testthat” is now being used to implement a test-suite for the whole package that serves as an early warning system for me to avoid any disastrous code changes. Since the package has been reasonably stable and robust, I have removed the “beta-version” message when the package is loaded.

 

Another reason that has led to a delay of the new version’s release was a working paper that is finally published and describes the methods and implementation in detail, along with some worked examples:

Maier, M. J. (2014). DirichletReg: Dirichlet Regression for Compositional Data in R. Research Report Series / Department of Statistics and Mathematics, 125. WU Vienna University of Economics and Business, Vienna. http://epub.wu.ac.at/id/eprint/4077

The whole code I’ve used in this paper is available as a vignette in PDF, Sweave and R-code files.

 

For more information, please have a look at the NEWS section of the package.

 

I would be glad if you upgraded to the new version and used it with new and existing code – if there are any errors, please don’t hesitate to contact me. I plan to leave DirichletReg 0.4-0 on CRAN for a month or so before I upgrade there as well. So you can use it as a backup, if any of my “improvements” should turn out to be bugs and break some functionalities.

 

Kind regards,

Marco

 

 

 

 

 

Mag. Marco J. Maier

Institut für Statistik und Mathematik

Institute for Statistics and Mathematics

 

WU

Wirtschaftsuniversität Wien

Vienna University of Economics and Business

Building D4, Level 4

Welthandelsplatz 1

1020 Wien

Austria

 

Tel:      +43-1-313 36-4335

Fax:     +43-1-313 36-90-4335

E-Mail:  marco.maier at wu.ac.at

wu.ac.at

 

http://statmath.wu.ac.at/~maier

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