Articles by David Smith

An introduction to Econometrics, using R

October 22, 2013 | David Smith

If your econometrics is a bit rusty and you're also looking to learn the R language, you can kill two birds with one stone with Introductory Econometrics using Quandl and R. The first three parts of this seven-part tutorial introduces the basics of regression analysis, while the remaining sections provide ... [Read more...]

Video: Time-to-event models

October 21, 2013 | David Smith

If you're trying to predict when an event will occur (for example, a consumer buying a product) or trying to infer why events occur (what were the factors that led to a component failing?), time-to-event models are a useful framework. These models are closely related to survival analysis in life ... [Read more...]

Fantasy Football Modeling with R

October 16, 2013 | David Smith

Boris Chen, a data scientist for the New York Times, has been running since August a weekly blog with statistical analysis of NFL players, as fodder for Fantasy Football players around the country. Here's how he describes what he does: My model pulls aggregated expert rankings from fantasypros, and I ... [Read more...]

R usage skyrocketing: Rexer poll

October 15, 2013 | David Smith

Rexer Analytics has been conducting regular polls of data miners and analytics professionals on their software choices since 2007, and the results of the 2013 Rexer Analytics Data Miner Survey were presented at last month's Predictive Analytics World conference in Boston. Here are some highlights of the responses from the 1,039 non-vendor participants. (... [Read more...]

Alteryx integrates with Revolution R Enterprise

October 15, 2013 | David Smith

You already know that R is an amazingly powerful language for data analysis, but what if you're not a programmer? Or, what if you want to make the data manipulations, visualizations or statistical models you've developed in R available to business analysts, marketers, managers or other non-programming types? That's why ... [Read more...]

In case you missed it: September 2013 Roundup

October 11, 2013 | David Smith

In case you missed them, here are some articles from September of particular interest to R users: Todd Schneider wrote an algorithm in R to find the "most concave" US state (it's NY), and created an animation to show how it works. Rob Hyndman (of the "forecast" package) describes how ... [Read more...]

Tomorrow: Webinar on Time-to-Event Models

October 9, 2013 | David Smith

We're thrilled to have John Wallace and Tess Nesbitt from DataSong join our Fall webinar series tomorrow, with a great presentation on time to event models. If you're trying to predict when an event will occur (for example, a consumer buying a product) or trying to infer why events occur (... [Read more...]

Tableau adds integration with R

October 8, 2013 | David Smith

Tableau, the popular interactive data visualization tool, is coming out with a new 8.1 update, and it will include integration with the R language. Access to R is a feature that has been requested by Tableau users for some time, and was met with rapturous applause when it was announced at ... [Read more...]

Tomorrow: R+Hadoop Webinar with Cloudera and Revolution Analytics

October 2, 2013 | David Smith

If you haven't already registered, don't miss tomorrow's webinar presented by Cloudera's Director of Product Strategy, Jairam Ranganathan and Michele Chambers, Chief Strategy Officer at Revolution Analytics. This will be a great opportunity to learn how R and CDH (Cloudera's Hadoop distribution) work together with the forthcoming Revolution R Enterprise 7. ... [Read more...]

R with Big Data on Hortonworks

October 1, 2013 | David Smith

If you missed last week's webinar with John Kreisa from Hortonworks (hosted by Data Science Central), we described how R fits into the Modern Data Architecture. Not only can you extract and distil data in Hadoop with the open-source RHadoop project, but with the forthcoming release of Revolution R Enterprise 7 ... [Read more...]

Which is the best "Flyover" state?

September 30, 2013 | David Smith

If you were to hop into your personal aircraft, and plotted a straight line course taking off in one state and landing in the SAME state, how many other states might you fly over? On other words, what's the best state for "flyovers" of other states? Todd Schnieder from the ... [Read more...]

Forecasting Using R: A new online course from Rob Hyndman

September 27, 2013 | David Smith

Statistical forecasting is a critical component of every modern business, and Rob J Hyndman, Professor of Statistics at Monash University, is an expert in the field. He's the co-author of several books on forecasting, including Forecasting: Principles and Practice, a free on-line book that provides a comprehensive introduction to forecasting ... [Read more...]

R 3.0.2 "Frisbee Sailing" now available

September 25, 2013 | David Smith

The latest update to the open source R project, R 3.0.2, is now available. This incremental update, codenamed "Frisbee Sailing", mainly fixes some minor bugs, improves the organization of the distribution, improves performance in some areas, and adds a few small features (see the NEWS file for a complete list). There's ... [Read more...]

R as a command-line tool for data science

September 24, 2013 | David Smith

Data Scientist Jeroen Janssens recently published a useful list of 7 data science tools that you can use from the command line. This doesn't just mean they're convenient tools for command-line junkies: it also means you can easily chain them together with data sources for offline, automated processes. Included in the ... [Read more...]

Big Data Bytes: How Open Source is Changing Business

September 23, 2013 | David Smith

I had a fun time on Friday in a Google Hangout chat with David Pittman (IBM), Eric Kavanagh (Bloor Group) and Tom Deutsch (IBM), where we talked about how open source is changing business. The conversation covered several open source projects including R and Hadoop, and ranged from the impact ... [Read more...]

Hortonworks Hadoop, Big Data and Data Science

September 20, 2013 | David Smith

Over at the Hortonworks blog, I've shared some resources for getting started with Data Science and R. And if you'd like to learn more about how Hadoop and R fit into the modern data artchitecture, I'll be participating in a joint webinar with Hortonworks' John Kreisa. If you'd like to ... [Read more...]

Real Pirate Attacks, Charted with R

September 19, 2013 | David Smith

To mark Talk Like a Pirate Day, Bob Rudis uses R to animate a map of the cumulative real-world pirate attacks since 1978: Looks like the Carribean and the West Indes, traditional pirate haunts, are still active. But the real hot-spot in modern times is Africa. Find the R code behind ... [Read more...]

Rrrrr! It’s Talk Like a Pirate Day!

September 19, 2013 | David Smith

Arrr, Mateys! Today be "Talk Like a Pirate Day", t' unofficial day o' R users everywhere. (Rrrrr!) T' celebrate this swashbucklin' day, Revolution Analytics has a bunch o' pirate bandanas, eaypatches and "I love R" T-shirts t' give away t' t' best pirate pictures posted t' t' #RPirate2013 hashtag on ... [Read more...]
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