MilanoR staff is happy to announce the next MilanoR mee [...] [Read more...]

Taking the first step is often the hardest: getting data from Excel into R. Suppose you would like to use the ChainLadder package to forecast future claims payments for a run-off triangle that you have stored in Excel. How do you get the triangle into R and execute a reserving ... [Read more...]

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I hope my letter could boost this guy up like: I'm not sure if I'm a good observer, but time and time again I feel some people are undervalued, or they were not given better opportunities to show their value. Not surprisingly, I know quite a few such people in ... [Read more...]

The video replay from last week's Introducing Revolution R Open webinar is now available, and I've embedded it below for anyone who may have missed the live presentation. In addition to providing an overview of Revolution R Open, the presentation also introduces other open source projects from Revolution Analytics. If ... [Read more...]

A recent post pointed us to a great talk that elegantly described how inferences from a trial could be analyzed with a purely resampling-based approach. The talk uses data from a paper that considered the association between beer consumption and mosqu... [Read more...]

I have added two new drafts of chapters for the Introductory Fisheries Science with R book.  Both chapters are still rough, but feedback would be greatly appreciated. The first chapter is an introduction to basic data manipulations, largely using the … Continue reading → [Read more...]

SIRAcon, the annual conference for the Society of Information Risk Analysts was held September 9th and 10th. I was fortunate enough to not only attend, but I also spoke (on how to stop worrying and love math) and moderated a fantastic panel with Ali-Samad-Khan, Jack Jones and Doug Hubbard. It ... [Read more...]

In a previous post we looked at how to use D3 TopoJSON files with R and make some very D3-esque maps. I mentioned that one thing missing was moving Alaska & Hawaii a bit closer to the continental United States and this post shows you how to do that. The ... [Read more...]

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A new package RcppAnnoy is now on CRAN. It wraps the small, fast, and lightweight C++ template header library Annoy written by Erik Bernhardsson for use at Spotify. While Annoy is setup for use by Python, RcppAnnoy offers the exact same functionality... [Read more...]

In this post I will try to copy the calculations of SAS's PROC MCMC example 61.5 (Poisson Regression) into the various R solutions. In this post Jags, RStan, MCMCpack, LaplacesDemon solutions are shown. Compared to the first post in this series, rcppbugs and mcmc are not used. Rcppbugs has no poisson ... [Read more...]

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My first blog post on Perceivant.comhttp://perceivant.com/causality-time-series-determining-impact-marketing-interventions/ [Read more...]

Salvino A. Salvaggio, PhDNovembre 2014Online da febbraio 2016Sebbene in uno Stato di diritto dovrebbe vigere il doppio obbligo di rispetto della legge e di certezza del diritto, questo nulla toglie al fatto che ci si possa legittimamente porre domande... [Read more...]

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Uruguayan voters are about to give give Frente Amplio a third mandate this November 30th. The following graph shows how the outcome would look like if the election were held this week. The undecided voters were distributed accordingly to each party as by the election day. The picture draws the ... [Read more...]

Substantive expertise makes it into the Data Science Venn Diagram from DataCamp's infographic on how to become a data scientist. It's one of the three circles of equal size along with programming and statistics. Regrettably, substantive expertise ... [Read more...]

The R language has jumped to number 12 in the November 2014 TIOBE Index of programming language popularity. This is R's highest ranking in the history of the TIOBE index, which has been ranking languages since 2003. A high ranking is an impressive achievement for R given that it is a domain-specific language (... [Read more...]

Within 2 weeks, electors in Uruguay will vote for the runoff election between FA and PN. According to the polling data being published, it's very likely Uruguayans will give FA a third mandate. I run the following forecast model which suggest that the difference between the two parties are huge; even ... [Read more...]