July 2014

The Monty Hall problem

July 20, 2014 | Mic

The Monty Hall problem is a famous game which was played in the television show "Let's make a deal".The game goes like this:There are three doors, behind each door there is either a goat or an amazing sportcar. The contestant wins if they guess where t... [Read more...]

The Rise and Fall of the name Jennifer

July 19, 2014 | Francis Smart

A recent fascinating post by Analysis at Large got me interested in naming trends analysis. The original post used Social Security data by state to map out the more frequent names by state. While this sounded interesting it turned out a single name (yo... [Read more...]

Guns are cool – time effects

July 19, 2014 | Wingfeet

September last year I made a post using the shootingtracker data. It is attempted in shootingtracker to register all shootings with at least four victims, be they wounded or dead. The data starts  January 1st 2013, which means that by now the... [Read more...]

US Names by State: Part I (Mary is everywhere!)

July 18, 2014 | jgreenb1

I was browsing the Social Security Administration’s website and found a link for the open government initiative (http://www.ssa.gov/open/data/).  There seems to be a fair amount of interesting data here, but I grabbed the names of people born in the US … Continue reading → [Read more...]

July 22: Applications in R Webinar

July 18, 2014 | David Smith

Just a quick heads-up that I'll be presenting with Neera Talbert (VP Professional Services, Revolution Analytics) in a free webinar on Tuesday, July 22 on Applications in R: Success and Lessons Learned from the Marketplace. I'll describe several R applications from well-known companies (some of which can be seen in the ... [Read more...]

Batman’s Choice

July 18, 2014 | aschinchon

A hero can be anyone, even a man doing something as simple and reassuring as putting a coat on a young boy’s shoulders to let him know the world hadn’t ended (Batman in The Dark Knight Rises) Joker has captured Batman and keeps him into a dark and ... [Read more...]

Bio7 R Documentation and Plot Examples

July 18, 2014 | » R

18.07.2014 A very time expensive process is the documentation of software you created yourself. I was finally able to update and improve the documentation for Bio7 and the embedded R “Graphical User Interface”. For the documentation this time i used Lyx to export the LaTeX document as HTML with the available ... [Read more...]

Alternate Price Plots | ggplot2 + magrittr

July 17, 2014 | klr

code{white-space: pre;} pre:not([class]) { background-color: white; } if (window.hljs && document.readyState && document.readyState === "complete") { window.setTimeout(function() { hljs.initHighlighting(); }, 0);} Just some quick experiments with ggplot2 + magrittr to plot prices differently than the traditional ways. We wi€™ll get daily data on the S&P 500 from FRED using [Read more...]

R and Meta-Analysis

July 17, 2014 | Joseph Rickert

by Joseph Rickert Broadly speaking, a meta-analysis is any statistical analysis that attempts to combine the results of several individual studies. The term was apparently coined by statistician Gene V Glass in a 1976 speech he made to the American Education Research Association. Since that time, not only has meta-analysis become ... [Read more...]

Restaurant Performance Sunk by Selfies

July 17, 2014 | Neil Gunther

An interesting story appeared over the weekend about a popular NYC restaurant realizing that, although the number of customers they served on a daily basis is about the same today as it was ten years ago, the overall service has significantly slowed. Naturally, this situation has led to poor online ... [Read more...]

Discontinuity Bayesian Forecasting

July 16, 2014 | Daniel Marcelino

I’m finalizing a paper presentation for the ABCP meeting, where I explore poor polling forecast in local elections in Brazil. I drew upon the Jackman (2005)’s paper “Pooling the Polls” to explore a bit about “house effects” in the Brazilian context. However, during the analysis I found myself extending ... [Read more...]

Why hadn’t I written a function for that?

July 16, 2014 | Karl Broman

I’m often typing the same bits of code over and over. Those bits of code really should be made into functions. For example, I’m still using base graphics. (ggplot2 is on my “to do” list, really!) Often some things will be drawn with a slight overlap of the ... [Read more...]

Is rainfall reporting endogenous to conflict?

July 16, 2014 | Thiemo Fetzer

For my paper on the impact of social insurance on the dynamics of conflict in India, I use some new remote sensed weather data. The data comes from the Tropical Rainfall Measuring Mission (TRMM) satellites. The satellite carries a set of five instruments, and is essentially a rainfall radar located ... [Read more...]
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