Patrick Roocks
2016-Apr-21 07:23 UTC
[R-pkgs] rPref 1.0 - Computing Pareto Optima and Database Preferences
Dear R users, the first 1.0 version of the rPref package is now on CRAN. rPref allows to select the Pareto-optimal tuples from a data set, also called Skylines in the database community. For example, optimal tuples from mtcars according to "high(mpg) * high(hp)" (where "*" is the Pareto operator) are those cars, for which no other dominating car exists. There, a car dominates another car if its horsepower or miles-per-gallon value is strictly better while the other value is better or equal. See http://p-roocks.de/rpref/index.php?section=examples for more examples. The changes of this version include: - A new function get_btg_dot to generate Better-Than-Graphs induced by the preference using Graphviz. - Fixed compatibility issues with new versions of dplyr and testthat. Comments and contributions are very welcome via github: https://github.com/patrickroocks/rpref Best regards, Patrick