Tag Archives: probability
Ancient Probability
I had a need to look in the first-ever probability textbook this weekend. It isn’t really ancient, but it is definitely old. And it’s all on the Internet Archive as a pdf. Good times. Abraham de Moivre, The doctrine of … Continue reading
Filed under education
Random Graphs in NetworkX: My Spatial-Temporal Preferred Attachment Diversion
To take my mind off my meetings, I spent a little time modifying the Spatial Preferred Attachment model from Aiello, Bonato, Cooper, Janssen, and Prałat’s paper A Spatial Web Graph Model with Local Influence Regions so that it changes over … Continue reading
Filed under combinatorics, probability
MCMC in Python: PyMC for Bayesian Model Selection
(Updated 9/2/2009, but still unfinished; see other’s work on this that I’ve collected) I never took a statistics class, so I only know the kind of statistics you learn on the street. But now that I’m in global health research, … Continue reading
Filed under MCMC, statistics
MCMC in Python: PyMC for Bayesian Probability
I’ve got an urge to write another introductory tutorial for the Python MCMC package PyMC. This time, I say enough to the comfortable realm of Markov Chains for their own sake. In this tutorial, I’ll test the waters of Bayesian … Continue reading
Filed under MCMC, probability
MCMC in Python: PyMC to sample uniformly from a convex body
This post is a little tutorial on how to use PyMC to sample points uniformly at random from a convex body. This computational challenge says: if you have a magic box which will tell you yes/no when you ask, “Is … Continue reading
Filed under MCMC, probability
Applying Probability
My new job is in a den of Bayesians! This sort of philosophical trouble is something I avoided for years when I worked on random graphs. In combinatorial probability, I just said “assume the axioms of probability” and got to … Continue reading
Filed under probability
