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</o:shapelayout></xml><![endif]--></head><body lang=DE-AT link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'>Dear DirichletReg Users,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'>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):<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Consolas;color:#400000'>> install.packages("DirichletReg", repos="http://R-Forge.R-project.org")<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'>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.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'>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:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'>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. <a href="http://epub.wu.ac.at/id/eprint/4077">http://epub.wu.ac.at/id/eprint/4077</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'>The whole code I’ve used in this paper is available as a vignette in PDF, Sweave and R-code files.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'>For more information, please have a look at the NEWS section of the package.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'>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.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'>Kind regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'>Marco<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:#400000'><o:p> </o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>Mag. Marco J. Maier<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><span style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>Institut für Statistik und Mathematik<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><i><span style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>Institute for Statistics and Mathematics<o:p></o:p></span></i></p><p class=MsoNormal style='line-height:110%'><span style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'><o:p> </o:p></span></p><p class=MsoNormal style='line-height:110%'><b><span style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>WU<o:p></o:p></span></b></p><p class=MsoNormal style='line-height:110%'><span style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>Wirtschaftsuniversität Wien<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><i><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>Vienna University of Economics and Business<o:p></o:p></span></i></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>Building D4, Level 4<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>Welthandelsplatz 1<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>1020 Wien<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>Austria<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'><o:p> </o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>Tel: +43-1-313 36-4335<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>Fax: +43-1-313 36-90-4335<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>E-Mail: marco.maier@wu.ac.at<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'>wu.ac.at<o:p></o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'><o:p> </o:p></span></p><p class=MsoNormal style='line-height:110%'><span lang=EN-US style='font-size:9.0pt;line-height:110%;font-family:"Verdana","sans-serif";color:#400000;mso-fareast-language:DE-AT'><a href="http://statmath.wu.ac.at/~maier">http://statmath.wu.ac.at/~maier</a><o:p></o:p></span></p></div></body></html>