On Wednesday, Mathias Drton and I will be presenting a read paper on Bayesian model choice for singular models at the Royal Statistical Society in London. You can read more about it on the RSS web site , where you … Continue reading → [Read more...]

[Read more...]

A significant chunk of the data that we encounter on a daily basis is available in an unstructured, free text format. Hence, the ability to glean useful bits of information from this unstructured pile can be quite valuable. In this post, we will attempt a basic analysis of the text ... [Read more...]

English summary: On 2016-09-28 I presented an application of methods of estimating Exponential-family Random Graph Models from ego-centrically sampled data. Conference was in Polish. See the program and my slides for further details. W zeszłym tygodniu (28-30.09.2016) miała miejsce konferencja Metodologiczne Inspiracje 2016. Badania ilościowe w naukach ... [Read more...]

This year we’ve had a great summer for sporting events! Now autumn is back, and with it the Ligue 1 championship. Last year, we created this data analysis tutorial using R and the excellent package FactoMineR for a course at ENSAE (in French). The dataset contains the physical and technical ... [Read more...]

What is R? I was asked at the end of my presentation on the 10th Cracow R Users Meetup that was held last Friday (30.09.2016). I felt strange but absolutely confirmed that R is the language of Data Science and is designed to performed the statistical ... [Read more...]

Back by popular demand! We have been asked many times when we would run again the Marketing Analytics Using R training course. We used to do it with Revolution Analytics which is now part of Microsoft but due to client-side commitments we have not had a public course for 2 years. [Read more...]

Recently saw a really fun article making the rounds: The prevalence of statistical reporting errors in psychology (1985–2013) Nuijten, M.B., Hartgerink, C.H.J., van Assen, M.A.L.M. et al. Behav Res (2015). doi:10.3758/s13428-015-0664-2. The authors built an R package to check psychology papers for ... [Read more...]

In this set of exercises we shall practice the functions for network statistics, using package igraph.If you don’t have package already installed, install it using the following code: install.packages("igraph") and load it into the session using the following code: library("igraph") before proceeding. You can find ... [Read more...]

Here is a representation of the precision of a kernel density estimate (second axis) against the true value of the density (first axis), which looks like a lasso of sorts, hence the title. I am not sure this tells much, except that the estimated values are close to the true ... [Read more...]

[Read more...]

Ok, this post is about one of my latest crazy/harebrained/whacky ideas. I’m fed up of having to carry my Galaxy Note 3 in my hand. I can’t stand handbags and most women’s clothing items don’t have pockets or the pockets are insufficient. Given how easy ... [Read more...]

We are starting the third unit in AP Statistics and we will be learning about scatter plots and regression. I will teach them how to do this in R and also how to do it on the TI nspire cx. I have already gone over some of the basics of ... [Read more...]

Note that this is a repost of my post on Monkeylearn’s blog. Introduction Have you tweeted about your “#firstsevenjobs”? I did! “#firstsevenjobs” and “#first7jobs” tweets initial goal was to provide a short description of the 7 fir... [Read more...]

An new version 0.0.8 of RcppAnnoy, our Rcpp-based R integration of the nifty Annoy library by Erik, is now on CRAN. Annoy is a small, fast, and lightweight C++ template header library for approximate nearest neighbours. This release pulls in a few su... [Read more...]

Abstract Introduces my Github repo providing R code to accompany the book “Real-World Machine Learning”. Introducing rwml-R The book “Real-World Machine Learning” attempts to prepare the reader for the realities of machine learning. ... [Read more...]

Journalism in Pakistan has, in the recent years, become quite a lustrous industry, with a considerable fan following which mimics that of the Film and Drama Industry. Indeed, some Pakistani journalists are admired and followed passionately by large seg... [Read more...]

A month ago we launched R course finder, an online directory that helps you to find the right R course quickly. With so many R courses available online, we thought it was a good idea to offer a tool that helps people to compare these courses, before they decide where ... [Read more...]