Articles by fernandohrosa

Equality of Covariances Matrices Test in R (varcomp)

October 9, 2011 | fernandohrosa

This is a piece of code I implemented in 2004, which was supposed to be part of an R-package in multivariate testing (to be named, rather creatively, mvttests). Time has flown, I haven’t still got around to implementing the said package, but people keep asking me for the varcomp function, ... [Read more...]

R2HTML Package

August 1, 2010 | fernandohrosa

Introduction R2HTML is an R package, written and maintained by Eric Lecoutre currently maintained by me. It provides functions and methods to output different R objects to HTML files. It also has a Sweave driver to allow parsing of HTML files containing R code and automatically write the corresponding ... [Read more...]

Sweave Syntax Highlighting in vim

November 27, 2006 | fernandohrosa

If you use Sweave and vim, you might have wondered if it’s possible to have it syntax highlight Rnw/Snw files properly : the latex bits with LaTeX syntax and the noweb R chunks with R syntax. It is! Take a look a the screenshot below: In order to have ... [Read more...]

R-Project: Translation Status

September 27, 2005 | fernandohrosa

Introduction This page was originally set up to shows statistics of the current status of the translation of messages for the R-project. The statistics can be generated with a Perl script that wrote for this: I had put this info here in order to help the Translation ... [Read more...]

Creating shaded areas in R

May 12, 2005 | fernandohrosa

Sometimes we want to shade areas under a density on a graphic, for instance to illustrate a p-value or a region under the normal curve. Using the polygon() function from base R we can make graphics like the following one: How to do it First we have to plot the ... [Read more...]

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