Articles by Jason

Code: parsing Slovenian exchange rate data

January 30, 2011 | Jason

Some time ago I found myself in need of daily exchange rates for the Slovenian Tolar (though I can’t now remember why). Unfortunately, I wasn’t able to find the data in a readily usable format at the Bank of Slovenia … Continue reading → [Read more...]

Relationship Between SAT & College Retention

January 21, 2011 | Jason

Here is a quick analysis of the relationship between SAT score and student retention. The data is from the Integrated Postsecondary Education Data System (IPEDS) and analyzed using R. This was a quick analysis and would be careful about making any strong conclusions. The source for running this analysis along ... [Read more...]

Recreating Gapminder World Map with R & ggplot2

January 11, 2011 | Jason

Gapminder has posted an interesting chart using world development indicators from the World Bank. I thought it would be a good exercise to recreate this chart using R and ggplot2. While playing with the data, not log transforming GDP provides some interesting, and perhaps different, interpretation. The R script and ... [Read more...]

LaTeX and Sweave

December 1, 2009 | Jason

LaTeX is a typesetting language that is known for its beautiful mathematical formulas. It is similar to HTML in that you write your document in plain text and process (or compile) it to create a postscript or PDF file. You will need to download a LaTeX processor for your platform. ... [Read more...]
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