The marketing researcher asks some version of the following question in every study, "Tell me what you want?" The rest is a summary of the notes taken during the ensuing conversation.Steve Jobs' quote suggests that we might do better getting a reaction... [Read more...]

I recently released a new version of Bio7 just in time and planned for the useR conference 2015 where I will present Bio7 in the Ecology oral session titled: “A Graphical User Interface for R in an Integrated Development Environment for Ecological Modeling, Scientific Image Analysis and Statistical Analysis “. I hope ... [Read more...]

A while back I recommended Nathan Uyttendaele’s beginner’s guide to speeding up R code. I’ve just heard about Nathan’s computer game project, DotCity. It sounds like a statistician’s minimalist take on SimCity, with a special focus on demographic shifts in … Continue reading → [Read more...]

I downloaded counts of deaths by age, year and mayor cause from the Dutch statistics site. In this post I do some plots to look at causes and changes between the years.Data Data from CBS. I downloaded the data in Dutch, hence the first thing to do... [Read more...]

At day one of the R Summit at Copenhagen Business School there was a lot of talk about the performance of R, and alternate R interpreters. Luke Tierney of the University of Iowa, the author of the compiler package, and R-Core member who has been working on R’s performance ... [Read more...]

We have previously written that we like the investment performance summary called the Sharpe ratio (though it does have some limits). What the Sharpe ratio does is: give you a dimensionless score to compare similar investments that may vary both in riskiness and returns without needing to know the investor’... [Read more...]

Saturday 27 June 2015 - 22:47 The knarrs of Open Analytics have left the port of Antwerp on their way to Denmark. What will our delegation bring to Aalborg besides our loyal sponsorship? Tuesday For starters we've just released a Dockerfile Editor which may be particularly useful for Dirk Eddelbuettel's tutorial on Docker ... [Read more...]

In light of the good news today that the Supreme Court ruled that same-sex couples have the right to marry in the United States, we thought we'd look when various states allowed same-sex couples to marry (if they did at all) before today. The post When did same-sex marriage laws ... [Read more...]

26.06.2015 I released a new version of Bio7 for Windows, Linux and MacOSX simultaneously. This release is based on Eclipse 4.5 which was published on Wednesday. It comes bundled with the latest ImageJ version (1.49u) and the latest R version (bundled with Windows and Mac). Download at: http://bio7.org New features: ... [Read more...]

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Win-Vector LLC is a consultancy founded in 2007 that specializes in research, algorithms, data-science, and training. (The name is an attempt at a mathematical pun.) Win-Vector LLC can complete your high value project quickly (some examples), and train your data science team to work much more effectively. Our consultants include the ... [Read more...]

I was honoured to be the presenter at [last night's meeting of SURF](http://www.meetup.com/R-Users-Sydney/events/223092608/), the [11th largest R user group](http://blog.revolutionanalytics.com/2015/04/r-user-group-meetings-this-week-in-the-bay-area-and-around-the-world.html) worldwide. The topic of my presentation was "R at Microsoft", where I described how Microsoft has enthusiastically embraced R ... [Read more...]

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Tuesday, at the annual meeting of the French Economic Association, I was having lunch Alfred, and while we were chatting about modeling issues (econometric models against machine learning prediction), he asked me what boosting was. Since I could not be very specific, we’ve been looking at wikipedia page. Boosting ... [Read more...]

Just a few quick lines today to announce an update to the remote package (1.0.0 now on CRAN) We have uploaded a first major release of remote to CRAN a couple of weeks ago. Most relevant changes are: bottleneck functions … Continue reading → [Read more...]

Geomorph users,We have uploaded version 2.1.6 of geomorph* to CRAN. The windows and mac binaries have been compiled and the tarball is available.New Features:New globalIntegration() function for evaluating integration vs. self-similarity... [Read more...]

by Joseph Rickert The installr package has some really nice functions for working with the daily package download logs for the RStudio CRAN mirror which RStudio graciously makes available at http://cran-logs.rstudio.com/. The following code uses the download_RStudio_CRAN_data() function to download a month's worth of .... [Read more...]

By Richard Pugh, Commercial Director I love my job.  Seriously.  I was enjoying it before Hal Varian made it sexy, but since then, and the data science explosion, everything has kicked into an even higher gear.  Why do I love … Continue reading → [Read more...]