I'm a huge supporter of the Free and Open Source Software movement. I've written more about R than anything else on this blog, all the code I post here is free and open-source, and a while back I invited you to steal this blog under a cc-by-sa license....
On October 2008 Mexico's capital, the Federal District, approved a version of no-fault divorce locally known as "express divorce". With the new law the requesting spouse no longer had to provide a cause to dissolve the marriage and the coup...
Table 1: Population of Tawi-Tawi from 1903 to 2010 1903 1918 1939 1948 1960 1970 1975 1980 1990 1995 2000 2007 2010 17000 45000 46000 59000 79000 110000...
The traditional way to show that your topic is worth studying in front of an audience is to show the state of the field based on a literature review. This is especially true if your subject is obscure except to a handful of scientists in the world.I wa...
Last Saturday I met the guys from RStudio at the R in Finance conference in Chicago. I was curious to find out what RStudio could offer. In the past I have used mostly Emacs + ESS for editing R files. Well, and what a surprise it was. JJ, Joe and Josh ...
As the researchpuzzler highlights in “a bad bet”, US bonds were a popular subject at the CFA Institute Annual Conference. While US Bonds have been in an amazing 30 year run (see previous posts Lattice Explore Bonds, Bond Market as a Casino Ga...
Plotting data and distribution simultaneously (with ggplot2)Ever wanted to see at a glance the distribution of your data across different axes? It happens often to me, and R allows to build a nice plot composition - This is my latest concoction.&n...
Looking to learn R, or to expand your R skills for data visualization or package development? Here are some R courses presented by the experts you may be interested in: June 19-20: Visualization in R with ggplot2. This course presented by Garrett Grolemund & Dr. Winston Chang of Rice University is also a web-based...
My own version of bubble plot (part 1)During one of my projects, I found myself in need of visualizing more than 3 dimensions at once. Three-dimensional graphs are not a good solution, usually - they will need to be properly oriented, for a start, ad t...
Introduction This is my second post in a series describing the weaknesses of the NHST paradigm. In the first post, I argued that NHST is a dangerous tool for a community of researchers because p-values cannot be interpreted properly without perfect knowledge of the research practices of other scientists — knowledge that we cannot...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
