Harlan Harris provides an interactive introduction to more advanced debugging techniques using traceback(), trace() and debug(). This talk was presented to the NYC R Statistical Programming Meetup on June 3, 2010. Code from Harlan's talk is available...
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Making Data Work online conference
O'Reilly is hosting a conference on June 9 on the topic of the analysis of large data sets. The title of the conference is Making Data Work: Ever since Hal Varian proclaimed that data analysis is the sexy career for the coming decade, people have been talking about data. And big data. And even bigger data. This online conference,...
Supercharging business analytics with R
Really pleased with how our webinar today, Supercharge BI and Dashboards with Predictive Analytics, turned out. Steve Miller from OpenBI gave a great introduction to the motivations and need for predictive analytics. Andrew Lampitt from Jaspersoft was next up, with an overview of the Jaspersoft system for BI reports and dashboards. My section focused mainly on R and its...
Data preparation for Social Network Analysis using R and Gephi
I want to share my experience in generating the data for social network analysis using R and analyzing it using Gephi... WHICH DATA STRUCTURE TO USE FOR LARGE GRAPHS?I quickly realized that using edge lists and adjacency matrix gets difficult as the g...
Reminder: Supercharging BI with R webinar tomorrow
If you haven't done so already, it's not too late to register for tomorrow's 1-hour webinar, Supercharge BI and Dashboards with Predictive Analytics. I'll be one of the presenters, talking about R and its applications for business intelligence. The topics and speakers will be: Introduction: Analytics and BI (Steve Miller, OpenBI) How BI Complements Predictive Analytics (Andrew Lampitt, Jaspersoft)...
Program for useR! 2010 announced
The program of invited lectures, contributed talks and posters for this year's annual R user conference useR! 2010 is now available, and it looks to be another excellent event. (Revolution Analytics is a sponsor of useR! 2010.) Of note this year is an increasing focus on commercial applications of R, with no less than three multi-talk sessions on applications...
Access attribute_hidden Functions in R Packages
Maybe the title should have been prepended with “Don’t…” The source code of R is littered with “attribute_hidden” declarations. These declarations attempt to ensure that the variable or function may only be accessed by code in the core R distribution, and not by R extension packages. Generally there is a good reason for this. For
Betting on Pi
I was reading over at math-blog.com about a concept called numeri ritardatari. This sounds a lot like “retarded numbers” in Italian, but apparently “retarded” here is used in the sense of “late” or “behind” and not in the short bus sense. I barely scanned the page, but I think I got the gist of it:
Map-reduce in R with Amazon EMR
There's new video at the Video Rchive of a JD Long presentation: Amazon Elastic Map-Reduce (So Easy an Economist Can Do It). I'm on a plane right now and the in-flight wi-fi isn't quite up to playing the 30-minute video, but judging from the slides it looks like a nice, practical demonstration of getting a map-reduce computation programmed in...
Voter targeting with R
Voter targeting for turnout is the process of scoring registered voters using demographic and electoral variables taken from voter lists and commercial databases. The score of all voters together is used to predict overall turnout, which determines the allocation of campaign resources and directs strategy for voter contact and communication. Targeting for turnout is a
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
