Blog Archives

R Matrix Operations

March 27, 2011
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R Matrix Operations

R can be used to perform various matrix calculations. This include functions for creating matrices (matrix), addition (+), multiplication (%*%) and inversion (solve). Fast Tube by Casper Other useful resources are provided on the Supplementary Material...

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R Package Automated Download

March 6, 2011
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There are situations where we might want to run R on a standalone machine so need to download a (potentially) large number of packages to install on this system. Rather than having to through the pain of searching through CRAN to find the packages and all the dependencies and manually download, it would be nice

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Statistical Graphics – Edward Tufte

February 15, 2011
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The work of Edward Tufte is worth reading if you are interested in designing meaningful graphs and removing chart junk from your displays.

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Data Mining with WEKA

January 30, 2011
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There are a number of good open source projects for statistics and data mining, for example the software WEKA developed at the University of Waikato. The description on their website states that: Weka is a collection of machine learning algorithms for data mining tasks. The algorithms can either be applied directly to a dataset or

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Gapminder

January 6, 2011
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Gapminder

As many people are aware Hans Rosling is an enthusiastic swedish academic with a passion for statistics who recently presented the program The Joy of Stats. One of the great things about Hans Rosling is his presentations and the interactive graphics that he uses to make his points. Fast Tube by Casper The gapminder software

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LaTeX Typesetting – Tables

January 2, 2011
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LaTeX Typesetting – Tables

One area of LaTeX that is not always straightforward is producing tabular material. In this post we will look at some of the basics of creating tables in a LaTeX document. Fast Tube by Casper When creating tables there is a tabular environment that can be used and we need to specify the number of

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LaTeX Typesetting – Document Structure

December 10, 2010
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LaTeX Typesetting – Document Structure

Following on from the initial post about creating a document using LaTeX we need to consider the structure of the document, i.e. headings and page layout. Fast Tube by Casper Document Class The document class is a template that specifies the appearance of different components of a document, e.g. the font and size of headings. The most commonly

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Programming with R – Processing Football League Data Part II

December 3, 2010
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Following on from the previous post about creating a football result processing function for data from the football-data.co.uk website we will add code to the function to generate a league table based on the results to date. To create the league table we need to count various things such as the number of games played, number

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LaTeX Typesetting – Basics

November 28, 2010
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LaTeX Typesetting – Basics

The LaTeX typesetting is used to create professional looking documents on a home computer. It may have a steeper learning curve than using a Word Processor, but this initial effort will often pay off reasonably quickly. The system is almost a necessity for anyone writing documents with a large amount of mathematics as most alternatives

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Programming with R – Processing Football League Data Part I

November 23, 2010
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In this post we will make use of football results data from the football-data.co.uk website to demonstrate creating functions in R to automate a series of standard operations that would be required for results data from various leagues and divisions. The first step is to consider what control options should be available as part of the

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