Dear R users, I am pleased to announce that the package ECoL (Complexity Measures for Classification Problems) is now available on CRAN ( https://cran.r-project.org/package=ECoL). The ECoL package provides measures to characterize the complexity of classification problems based on the ambiguity and the separation between the classes and the data sparsity and dimensionality of the datasets. This package provides bug fixes, generalizations and implementations of many state of the art measures. The measures are described in the paper: Tin Ho and Mitra Basu (2002). Please, visit the repository on GitHub ( https://github.com/SmartDataAnalytics/ECoL) for more information. Kind regards, Luis -- Dr. Lu?s Paulo Faina Garcia Department of Computer Science, University of Leipzig http://aksw.org/LuisGarcia [[alternative HTML version deleted]]