Simply Statistics has had the same logo since Roger grabbed the first picture in his results folder that looked “statistics related”. While we do have some affection for the logo, we would like something a little more catchy. So we would li...

Simply Statistics has had the same logo since Roger grabbed the first picture in his results folder that looked “statistics related”. While we do have some affection for the logo, we would like something a little more catchy. So we would li...

*Edit: I made a video! Dispersal is a key process in many domains, and particularly in ecology. Individuals move in space, and this movement can be modelled as a random process following some kernel. The dispersal kernel is simply a probability distribution describing the distance travelled in a given time frame. Since space is continuous,

I want to show the example of calling the Minimum Correlation Algorithm from Excel. I will use RExcel to connect R and Excel and will create a small VBA cell array function to communicate between Excel and R. I have previously discussed the concept of connecting R and Excel in the “Calling Systematic Investor Toolbox [...]

Andrew Sullivan highlights the significance of early voting in U.S. Presidential Elections (link). His second quote (from The Fix) requires a visit to your statistical adviser. Andrew considers this an "important point": Democrats generally vote early more than Republicans. In the five 2012 swing states where a 2008 early voting breakdown is available, Democrats voted early more than Republicans in all five. Even in a very good GOP year in…

eeptools 0.1 is available now on CRAN! You can install it by simply typing:install.packages('eeptools')in your R console now. The package allows users to play with a number of built in datasets for folks in education beginning to learn R, custom themes...

Another day full of interesting and challenging—in the sense they generated new questions for me—talks at the SuSTain workshop. After another (dry and fast) run around the Downs; Leo Held started the talks with one of my favourite topics, namely the theory of g-priors in generalized linear models. He did bring a new perspective on [...]

Many fallacious uses of statistical methods result from supposing that the statistical inference licenses a jump to a substantive claim that is ‘on a different level’ from a statistical one being probed. Given the familiar refrain that statistical significance is not substantive significance, it may seem surprising how often criticisms of significance tests depend on [...]

This is part of the ongoing series of pro tips for graduate students, check out parts one and two for the original installments. Learn how to write papers in a very clear and simple style. Whenever you can write in plain English, skip jargon as much ...

Felipe Nunes writes: I have many friends working with data that they claim to be considered as a ‘population’. For example, the universe of bills presented in a Congress, the roll call votes of all deputies in a legislature, a survey with all deputies in a country, the outcomes of an election, or the set [...]

By Xavier Badosa on Sep 25, 2012Opening contribution to the Task force for the strategic project on the development and use of common ESS tools and services for dissemination. Eurostat, Luxembourg, 20 September 2012 Links and Widgets: the Fabric of t...

NBC Unpacks Trove of Data From Olympics: Studies of more than 50,000 people who watched the Games depict vast shifts in how people watch television, especially with second devices like tablets or smartphones.

The Minimum Correlation Algorithm is a heuristic method discovered by David Varadi. Below I will benchmark the execution speed of 2 versions of the Minimum Correlation Algorithm versus the traditional minimum variance optimization that relies on solving a quadratic programming problem. I have run the code above for n=10 (10 assets), n=100 (100 assets), n=500 [...]

Hogg writes: At the end this article you wonder about consistency. Have you ever considered the possibility that utility might resolve some of the problems? I have no idea if it would—I am not advocating that position—I just get some kind of intuition from phrases like “Judgment is required to decide…”. Perhaps there is a [...]