Articles by fibosworld

R talks to Weka about Data Mining

July 14, 2013 | fibosworld

R provides us with excellent resources to mine data, and there are some good overviews out there: Yanchang’s website with Examples and a nice reference card The rattle-package that introduces a nice GUI for R, and Graham William’s compendium of tools The caret-package that offers a unified interface ...
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Change fonts in ggplot2, and create xkcd style graphs

February 17, 2013 | fibosworld

Installing and changing fonts in your plots comes now easy with the extrafonts-package. There is a excellent tutorial on the extrafonts github site, still I will shortly demonstrate how it worked for me. First, install the package and load it. You can now install the desired system fonts (at the ... [Read more...]

Basic ideas on aggregate, plyr and crosstables!

October 17, 2012 | fibosworld

A common task using R is the investigation of one particular dataset. Usually we have a mixture of numerical and categorial data and are interested in some statistics (e.g. means and so on). And there are a lot of threads, blogs etc around that. Sorry for adding another one, ... [Read more...]

ggplot2 – much easier with JGR and Deducer

July 7, 2012 | fibosworld

In the last R-User meeting in Cologne, we had a discussion about using ggplot2 – and I gave a short introduction of how to use ggplot2 with JGR and Deducer. Basically, JGR is a Graphical User Interface for R, and Deducer is a kind of “data analysis plugin”, that also comes ... [Read more...]

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