I've written before about how I couldn't find the Acteal Massacre in the homicide database available at the INEGI. So I decided to check if the deaths that occurred as a consequence of the massacre were misclassified as other types of violent death,
1736 search results for "GIS"
Some problems with the Mexican mortality database
NppToR 2.5.2 Improves startup
I’ve been getting lots of feedback that there are problems starting NppToR with some of the latest version. I took to the task of looking at that yesterday on the train home. I have made improvements to the way NppToR finds the RHome directory, not relying entirely on the windows registry. I also removed the
Google Insights and RCurl
Google Insights is nifty. If you’re logged in to your Google account, you can download the results as a CSV file. This is straightforward if you’re using a browser; if you’re trying to retrieve the results of queries using R, however, things get more complicated.
The following code retrieves the results of a Google Insights search for...
Area plots unmasked
RESULTS OF THE GREAT AREA PLOT QUIZ If you are the type of reader who remembers things from last week, you may remember the great area plot quiz we had running. This week, we are excited to announce that the results are in. The plot above shows answers to the four questions. The correct answers
Machine Learning and Data Mining with R
The San Francisco Bay Area ACM runs several courses on data mining and machine learning with R. Machine Learning 101 deals primarily with supervised learning problems, and Machine Learning 102 covers unsupervised learning and fault detection. Machine Learning 101 & 102 were most recently presented by Mike Bowles & Tricia Hoffman in September, and the lecture notes and class...
Example 8.18: A Monte Carlo experiment
In recent weeks, we've explored methods to fit logistic regression models when a state of quasi-complete separation exists. We considered Firth's penalized likelihood approach, exact logistic regression, and Bayesian models using Markov chain Monte Ca...
Ghcn V3 Metadata improvements
The Global Historical Climate Network (GHCN) is in it’s beta stage. On of the stated goals of the project is to improve the metadata that is provided for the station data. Over the past few months several independent volunteers have been focusing on the issue of station metadata, each with their own focus. Ron Broberg 
R: Basic R Skills – Splitting and Plotting
I am giving a short R course next year, so I am going to make a series of blog posts to help get my thoughts and example code in order. The aim is to introduce people with little or no experience of R to the language with self contained examp...
R: Basic R Skills – Splitting and Plotting
I am giving a short R course next year, so I am going to make a series of blog posts to help get my thoughts and example code in order. The aim is to introduce people with little or no experience of R to the language with self contained examp...
Fantasy football (oops, soccer)
Recently a colleague asked if I could use R/statistics to form a dream soccer team from a pool of soccer players, given basic player information like name, club, cost, points.The idea is to form a team with your preferred configuration of number of def...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
