Articles by Nathalie

Passing arguments to an R script from command lines

September 19, 2015 | 0 Comments

This post describes how to pass external arguments to R when calling a Rscript with a command line. The case study presented here is very simple: a Rscript is called which needs, as an input, a file name (a text file containing data which are loaded into R to be ... [Read more...]

Yet another post on google scholar data analysis

August 16, 2015 | 0 Comments

Inspired by this post, I wanted to use Google Scholar data to put nice images on my professional website (girly habit). This post explains how I combined the functions available in the R package scholar with additional analyses (partially inspired from the script available at this link, which in my ... [Read more...]

Playing with leafletR

August 2, 2015 | 0 Comments

Coming back from a bicycle ride in Tarn, I wanted to have a look at the trip. This gave me the opportunity to learn how to use the R package leafletR to obtain an HTML map using leaflet and the great projects OpenStreetMap or Thunderforest (among others). Introduction To use ... [Read more...]

Processing an XL grading sheet with R

June 13, 2015 | 0 Comments

This tutorial is dedicated to Vincent and to Erwan, the former for proposing me an interesting challenge to solve with R and the latter for his suspicious remarks about the language not being suited for this kind of task. Disclaimer: of course, this script can not be used on a ... [Read more...]

SOMbrero v1.0 is released

March 28, 2015 | 0 Comments

New !!! SOMbrero is now on CRAN: http://cran.r-project.org/web/packages/SOMbrero You can visit its Web User Interface: http://shiny.nathalievilla.org/sombrero (SOMbrero WUI, v1.0 related to SOMbrero v1.0). The web user interface can also be used directly from the package with the function sombreroGUI(). SOMbrero is ... [Read more...]

Installing RStudio Server on Ubuntu Server

January 18, 2015 | 0 Comments

This tutorial describes the different steps required to install RStudio Server on Ubuntu Server (version 14.04 LTS). It is widely inspired from the official installation instructions Installing R First, R must be installed on the server. The best way to do so is to proceed as described on this page, that ... [Read more...]

Producing student/teacher versions from a single Sweave file

December 16, 2014 | 0 Comments

This tutorial describes how to integrate computable R code (and outputs) in a LaTeX documents in a such a way that a single file can generate two (or more) PDF files. This trick is particularly useful for creating worksheets for R courses. A very small introduction to integrating R code ... [Read more...]

Search and draw cities on a map using OpenStreetMap and R

June 28, 2014 | 0 Comments

(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 ... [Read more...]

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