## momentify R package

September 19, 2014
By
$momentify R package$

I presented today an arxived paper of my postdoc at the big success Young Bayesian Conference in Vienna. The big picture of the talk is simple: there are situations in Bayesian nonparametrics where you don’t know how to sample from the posterior distribution, but you can only compute posterior expectations (so-called marginal methods). So e.g. you cannot provide

## Mini-tour

September 19, 2014
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The last two days have been kind of a very interesting mini-tour for me $-$ yesterday the Symposium that we organised at UCL (the picture on the left is...

## Yep. He made it; country voted No.

September 19, 2014
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Tweet Yesterday, more Scots than ever since universal suffrage was introduced cast a ballot on the matter of independence. The turnout was itself phenomenal and that implicating a series...

## Webinar September 25: Data Science with R

September 19, 2014
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A quick heads up that if you'd like to get a great introduction to doing data science with the R language, Joe Rickert will be giving a free webinar...

## What does CNN have in common with Carmen Reinhart, Kenneth Rogoff, and Richard Tol: They all made foolish, embarrassing errors that would never have happened had they been using R Markdown

September 19, 2014
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Rachel Cunliffe shares this delight: Had the CNN team used an integrated statistical analysis and display system such as R Markdown, nobody would’ve needed to type in the numbers...

## The New Consumer Requires an Updated Market Segmentation

September 18, 2014
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The new consumer is the old consumer with more options and fewer prohibitions. Douglas Holt calls it the postmodern market defined by differentiation: "consumer identities are being fragmented, proliferated, recombined, and...

## Pander tables inside of knitr

September 18, 2014
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Hadley Wickham opened my eyes that calling pander to generate nifty markdown tables inside of knitr requires a special chunk option, which bothersome extra step might be saved by updating pander...

## “Do You Want to Steal a Snowman?” – A Look (with R) At TorrentFreak’s Top 10 PiRated Movies List #TLAPD

September 18, 2014
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We leave the Jolly Roger behind this year and turn our piRate spyglass towards the digital seas and take a look at piRated movies as seen...

## Interactive Visualizations from R using rCharts

September 18, 2014
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At useR! 2014 Ramnath Vaidyanathan gave a tutorial and a presentation on one of his...

## Comparing machine learning models in R

September 18, 2014
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by Joseph Rickert While preparing for the DataWeek R Bootcamp that I conducted this week I came across the following gem. This code, based directly on a Max Kuhn...

## Stay on track: Plotting GPS tracks with R

September 18, 2014
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Many GPS devices and apps have the capability to track your current position via GPS. If you go walking, running, cycling, flying or driving, you can take a look...

September 17, 2014
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I burned through all of my extra lives in a matter of minutes, and my two least-favorite words appeared on the screen: GAME OVER (Ernest Cline, Ready Player One)...

## Fun with .Rprofile and customizing R startup

Over the years, I've meticulously compiled–and version controlled–massive and extensive configuration files for virtually all of my most used utilities, most notably vim, tmux, and zsh. In fact, one...

## Animated choropleths to visualize mortality rates of children under 5 and gender differences using rMaps

September 17, 2014
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This post displays two animated choropleths. One for global mortality rates for children under 5 (per 1000 live births) and the second for the difference in global mortality rates...

## BCEA 2.1

September 17, 2014
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We're about to release the new version of BCEA, which will contain some major changes.A couple of changes in the basic code that should improve the computational speed. In...

## Applications of R presentations at Dataweek

September 17, 2014
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I'm speaking at the DataWeek conference in San Francisco today. My talk follows Skylar Lyon from Accenture — I'm really looking forward to hearing how he uses Revolution R...

## Migrating Table-oriented Web Scraping Code to rvest w/XPath & CSS Selector Examples

September 17, 2014
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I was offline much of the day Tuesday and completely missed Hadley Wickham’s tweet about the new rvest package: Are you an #rstats user who misses python's...

## Bayes says “don’t worry” about Scotland’s Referendum

September 17, 2014
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Just few hours before Scots head to the polls, there is not an overwhelming advantage of the anti-independence vote. Actually, the margin is shorter than last time I looked...

## Using great circles and ggplot2 to map arrival/departure of 2014 US Open Tennis Players

September 17, 2014
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Please click on the image for information on how to use R and ggplot2 to generate this plot.

## Maximal Information Coefficient (Part II)

September 17, 2014
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A while back, I wrote a post simply announcing a recent paper that described a new statistic called the "Maximal Information Coefficient" (MIC),...

## Changes to FSA — Size Structure

September 16, 2014
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I have added a (very rough) first draft to the Size Structure chapter of the forthcoming Introductory Fisheries Science with R book on the book’s fishR webpage.  Accompanying this...

## PerformanceAnalytics update released to CRAN

September 16, 2014
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Version number 1.4.3541 of PerformanceAnalytics was released on CRAN today. If you’ve been following along, you’ll note that we’re altering our version numbering system.  From here on out, we’ll...

## New members for R-core and R Foundation

September 16, 2014
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The R Foundation for Statistical Computing, the Vienna-based non-profit organization that oversees the R Project, has just added several new "ordinary members". (Ordinary members participate in R Foundation meetings...

## R package to convert statistical analysis objects to tidy data frames

September 16, 2014
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I talked a little bit about tidy data my recent post about dplyr, but you should really go check out Hadley’s paper on the subject. R expects inputs...

## 3D Sine Wave

September 16, 2014
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Had a headache last night, so decided to take things easy and...

## Notes from the Kölner R meeting, 12 September 2014

September 16, 2014
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Last Friday we had guests from Belgium and the Netherlands joining us in Cologne. Maarten-Jan Kallen from BeDataDriven came from The Hague to introduce us to Renjin, and...

## Using SQLite in R

September 16, 2014
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Working on big data requires a clean and robust approach on storing and accessing the data. SQLite is an all inclusive server-less database system in a single file. This...

## Nuts and Bolts of Quantstrat, Part II

September 16, 2014
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Last week, I covered the boilerplate code in quantstrat. This post will cover parameters and adding indicators to strategies in … Continue reading →