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PhD Course "Econometric Production Analysis with R"
This PhD course will be held in Morogoro, Tanzania, August 31 - September 4, 2015.
Tutorial "Using R for Agricultural Economics Research"
Tutorial "Using R for Agricultural Economics Research" at the Congress of the European Association of Agricultural Economists (EAAE) in Ljubljana (Slovenia) on August 26, 2014.
Version 1.0 of the R package "frontier" released
The R package "frontier" provides tools for analysing efficiency and productivity using the "stochastic frontier" approach. This R package is based on Tim Coelli's DOS software "FRONTIER 4.1" and has been available on CRAN for almost 5 years now. After many improvements of the source code and a few changes of the user interface in the beginning, the code and the user interface have been rather stable in the previous 2.5 years. The "frontier" package has been used by many R users and many applications have proven its reliability. Therefore, I have called the latest version of this package "1.0." This version is now available on CRAN. It is almost identical to the previous versions but it includes citation information and the argument "farrell" of efficiencies.frontier() has been renamed as "minusU" and the argument "farrell" of summary.frontier() has been renamed as "effMinusU". The argument "farrell" can still be used for maintaining backward-compatibility.
Introduction to Econometric Production Analysis with R
I have made my collection of (lecture) notes "Introduction to Econometric Production Analysis with R" publicly available on my website:
Introduction to Econometric Production Analysis with R
I have made my collection of (lecture) notes "Introduction to Econometric Production Analysis with R" publicly available on my website:
Summer Course: Econometric Production Analysis with R
I will give a summer course in econometric production analysis with R (e.g. using the "frontier" package) in Portugal during the first week of September:
Version 0.995 of the "frontier" package is ready
Version 0.995 of the frontier package is ready for publication now. Binary and source packages will be available on R-Forge and CRAN soon.
frontier 0.99 is NOT backward compatible
We are approaching the first stable version (1.0) of the frontier package, which provides tools for microeconomic Stochastic Frontier Analysis (SFA). I have uploaded a kind of beta release (version 0.99) of this package to CRAN. The most important differences to version 0.9 affect the user interface. I have modified the package so that it is (hopefully) simpler to use and the functions are more similar to other R functions. Unfortunately, these changes make the new version NOT backward compatible. The most significant changes are reported below. A full ChangeLog is available in the log messages of the SVN repository on R-Forge. Feedback about this package is highly appreciated. Please report any bugs, suggestions, feature requests, comments, and questions in the forums and trackers on R-Forge.
