Name/Description Type Size Uploaded By Uploaded On


My presentation "Slippy Maps with R and leaflet.js" from the April 23 project night.

HTML file 3.2M Kent J. Apr 25, 2015


Tal Galili - Creating beautiful trees of clusterings with R (+a bonus) - 05 September 2013

Zip archive 2.6M Josh P. Sep 6, 2013

Boston useR R+Hadoop

Jeffrey Breen - An Introduction to Using R with Hadoop - 20 February 2013

Adobe Acrobat file 4.6M Josh P. Feb 26, 2013


Mango Solutions - Creating and Designing Applications Built on R - 23 October 2012

Adobe Acrobat file 8.2M Josh P. Nov 23, 2012


Q Ethan McCallum - Parallel R with Hadoop and Big Data - 15 August 2012

Adobe Acrobat file 94K Josh P. Aug 16, 2012


Bryan Lewis - Using bigmemory and R for large-scale linear algebra - 12 July 2012

Adobe Acrobat file 247K Josh P. Jul 13, 2012


Possibly of interest for the Hackathon

Adobe Acrobat file 533K John M. Apr 27, 2012


Ming Shan - Decision Trees - 7 December 2011

Zip archive 655K Josh P. Dec 21, 2011


Nicholas Horton - Teaching Statistics with Open-Source Tools - 10 November 2011

Zip archive 5.7M Josh P. Nov 30, 2011


Josh Paulson - R for Beginners - 13 September 2011

Zip archive 1.8M Josh P. Sep 14, 2011


John Muller - R for Beginners - 13 September 2011

Zip archive 230K Josh P. Sep 14, 2011


Amy Szczepanski - High Performance Computing with R - 28 July 2011

Adobe Acrobat file 393K Josh P. Aug 1, 2011


This is the talk I gave introducing RGraphViz to the meetup group.

PowerPoint presentation 100K Jeff M. Jul 19, 2011

2011 0713 HHP Lightning Talk - Nute

Slides from my Lightning Talk on the Heritage Health Prize exploratory analysis

Adobe Acrobat file 334K Michael N. Jul 14, 2011


Clustering and Visualization of CT scan data, or 'My Brain on R'. Packages made use of include: 'oro.nifti', 'oro.dicom', 'rgl', 'misc3d', 'cluster'.

Adobe Acrobat file 986K Noah B. Jul 14, 2011

Lightning Talk - googleVis - 20110713

R's googleVis package makes it easy to use the Google Visualization API. With it, just one line of R code automatically generates the 165 lines of HTML and JavaScript to create a Hans Gosling-style "motion chart" from sample data.

Adobe Acrobat file 709K Jeffrey B. Jul 13, 2011


Vincent Carey's presentation on Exploring genetics of gene expression with R/Bioconductor - 1 June 2011

Zip archive 2.5M Josh P. Jun 2, 2011


Max Kuhn's Presentation on the caret package. (March 2, 2011)

Adobe Acrobat file 244K Josh P. Jun 1, 2011


I attended a talk at MIT last week on "enterprise supercomputing" by Chief Scientist of SAP. I found some slides from the web; basically they are using in-memory computing and SSD technology to accelerate a lot of the decision making.

Adobe Acrobat file 787K Vipin S. May 25, 2011


Uploading the slides of CRIBB SciDB talk by Michael Stonebraker.

PowerPoint presentation 1.7M Vipin S. May 10, 2011

useR Vignette - Accessing Databases from R - 20110504

An introduction to accessing relational databases from R from our May 2011 meeting. Covers the DBI family of packages and RODBC; highlights dbApply() for RMySQL & RPostgreSQL; demonstrates sqldf package providing SQL access to standard data.frames.

Adobe Acrobat file 1.2M Jeffrey B. May 5, 2011

useR Vignette - Reshaping Data in R - 20110406

How to reshape data from wide (spreadsheet style) to long and back again with the reshape2 package from our April 2011 meeting. Ends with how to use dcast() to replace table() for contingency/frequenc­y tables (crosstabs from a consumer survey).

Adobe Acrobat file 769K Jeffrey B. Apr 7, 2011

useR Vignette - Grouping & Summarizing Data in R - 20110302

Quick survey of methods to group and summarize data in R from our March 2011 meeting

Adobe Acrobat file 299K Jeffrey B. Mar 4, 2011

useR Vignette - R + 15 minutes = Hadoop cluster - 20110209

"R + 15 minutes = Hadoop cluster" presentation from February 2011 meeting demonstrating JD Long's 'segue' package to create and use Hadoop via Amazon's Elastic MapReduce cluster for NON-Big Data problems.

Adobe Acrobat file 1.5M Jeffrey B. Mar 4, 2011


Vipin Sachdeva - Compiling and Using the "best" R - September 2010

PowerPoint presentation 136K Josh P. Feb 10, 2011

While has scanned these files for viruses, we recommend that you have up-to-date virus-scanning software on your own computer as well.

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