Category «Logiciels libres»

Publication de SOMbrero v1.0SOMbrero v1.0 is released

Nouveau !!! SOMbrero est désormais sur le CRAN : http://cran.r-project.org/web/packages/SOMbrero Vous pouvez toujours tester son interface graphique en ligne : http://shiny.nathalievilla.org/sombrero (SOMbrero WUI, v1.0 lié à SOMbrero v1.0) qui est aussi utilisable directement en local en installant le package. SOMbrero est un package R destiné à réaliser l’apprentissage de cartes auto-organisatrices en version stochastique. La …

Rechercher des villes et les placer sur une carte avec OpenStreetMap et RSearch and draw cities on a map using OpenStreetMap and R

(this tutorial can also by used dummies in geography…) This tutorial explains how to build a map from a matrix containing city names and corresponding country codes, as well as, eventually a frequency attached to each country. The script first find thanks to the nice open projet Open Street Map the coordinates of the corresponding …

Installer le package R ‘rmr2’ (élément de RHadoop) sans HadoopInstalling R package ‘rmr2’ (part of RHadoop) without Hadoop

For pedagogical purposes, I needed to install rmr2, which is an R package designed to perform mapreduce code in R. This package is part of the RHadoop project which aims at allowing users to manage and analyze data with Hadoop in R. I followed two strategies: the first one (not shown in this tutorial) consisted …

Installer les packages R pour le cours “Getting and Cleaning Data” (coursera)Install R packages for the course “Getting and Cleaning Data” (coursera)

This post explains how to install all (or at least most of) the R packages described in the MOOC “Getting and Cleaning Data” offered by Johns Hopkins University on the MOOC coursera if you’re using Ubuntu. Moreover, it gives pratical advices for staying up-to-date with your R installation on this OS. R installation: CRAN repository …