THE 8TH INTERNATIONAL CONFERENCE

12TH – 15TH JUNE, 2012

HOSTED BY:

DEPARTMENT OF BIOSTATISTICS

WELCOME!

Dear useRs,

Welcome to the R user conference, useR! 2012, hosted by the Department of Biostatistics, Van-derbilt University School of Medicine. Following seven successful meetings, the useR! conferenceis focused on: R as the ‘lingua franca’ of data analysis and statistical computing; providing a plat-form for R users to discuss and exchange ideas on how R can be used for statistical computations,data analysis, visualization and exciting applications in various fields; and giving an overview ofthe new features of the rapidly evolving R project. The program consists of invited talks discussingnew R developments and interesting applications of R, and user-contributed presentations reflect-ing the wide range of fields in which R is used to analyze data.

The following pages provide you with information regarding the R User Conference, useR! 2012.We hope that you find the conference stimulating, and that your visit at Vanderbilt University isenjoyable.

With kind regards from the useR! 2012 Organizing Committee.

Frank Harrell (Chair) JoAnn AlvarezAudrey Carvajal William CunninghamChris Fonnesbeck Tatsuki KoyamaStephania McNeal-Goddard Matt ShotwellYanna Song Sherry StokesYuwei Zhu

The organizing committee gives special thanks to Natalie Raines and her colleagues from Van-derbilt Medical Center Special Events, and to Department of Biostatistics lead local organizerStephania McNeal-Goddard. We also thank an anonymous artist for the t-shirt and front-coverdesigns.

1

PROGRAM OVERVIEW

Monday, June 1107:30 – 09:00 Continental Breakfast & Registration (for short-course attendees)09:00 – 17:30 Pre-conference short course, Bill VenablesTuesday, June 1207:00 – 08:30 Morning Tutorial Registration08:30 – 12:00 Morning Tutorial Sessions12:00 – 13:00 Afternoon Tutorial Registration13:30 – 17:00 Afternoon Tutorial Sessions14:00 – 17:00 Early Conference Registration16:30 – 18:30 Opening MixerWednesday, June 1307:45 – 08:45 Conference Registration & Breakfast08:45 – 09:00 Introductory Remarks09:00 – 09:45 Opening Keynote - Di Cook09:50 – 10:50 Kaleidoscope I10:50 – 11:15 Break11:15 – 12:35 Focus I12:35 – 14:00 Lunch14:00 – 14:45 Invited Talk - Bryan Hanson14:45 – 15:30 Invited Talk - Simon Urbanek15:30 – 16:00 Break16:00 – 17:00 Focus II17:05 – 18:05 Lightning Talks18:15 – 21:00 Poster Session with Drinks and Barbecue buffetThursday, June 1408:00 – 09:00 Breakfast & Conference Registration09:00 – 09:45 Thursday Keynote - Kevin Coombes09:50 – 10:50 Kaleidoscope II10:50 – 11:15 Break11:15 – 12:35 Focus III12:35 – 14:00 Lunch14:00 – 14:45 Invited Talk - Norm Matloff14:45 – 15:30 Invited Talk - Yihui Xie & JJ Allaire15:30 – 16:00 Break16:00 – 17:00 Focus IV17:05 – 18:05 Special Invited Discussion17:30 – 19:15 Shuttle to Country Music Hall of Fame & Cocktail Hour19:15 – 23:00 Conference Dinner1

Friday, June 1508:00 – 09:00 Breakfast09:00 – 09:45 Invited Talk - Tim Hesterberg09:50 – 10:50 Focus V10:50 – 11:15 Break11:15 – 12:15 Closing Keynote - Bill Venables12:15 – 12:35 Closing Remarks

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4

TRAVEL AND ACCOMMODATION

Time zoneNashville is in the central time zone (CST).

VenueThe main conference takes place at

Langford Auditorium & Light HallVanderbilt University Medical CenterNashville, TN 37232-2158USA

Bill Venables’ pre-conference short course will take place in the Vanderbilt Student Life Center(SLC). The conference will be held in three buildings: the Student Life Center (SLC), RandolphLight Hall (RLH), and Medical Center North (MCN). Two campus maps are provided. The small-scale map illustrates the entire campus, but highlights Light Hall/Langford auditorium. The large-scale map highlights the Student Life Center, Light Hall, and Medical Center North. The StudentLife Center is located near the intersection of 25th Avenue South and Vanderbilt Place. Light Halland Medical Center North are both located near the intersection of Garland Avenue and StevensonCenter Drive. Interactive maps, including the locations of conference hotels, on-campus housing,parking garage (for those not staying on campus), and conference venues are available at theconference website.

Traveling to Nashville and Vanderbilt UniversityVanderbilt University is located in Nashville, Tennessee, USA. The nearest major airport is NashvilleInternational Airport (BNA), located about ten miles east of campus. The BNA website maintainsa list of ground transportation options for air travelers. Taxi fare from the airport to Vanderbilt Uni-versity is about $27, and shuttles and buses are more economical options but have longer traveltimes.

ParkingConference parking (during the day) will be available at the 25th Avenue Garage on Vanderbiltscampus. The cost for each day is $7.75 per vehicle, and each car will be provided with parkinghangtag. Shuttles will run regularly between all the host hotels and the conference venues whilethe conference is in session. If you need to arrange handicapped parking, please contact NatalieRaines at 001 615 343 3320, or by e-mail at natalie.dietz@vanderbilt.edu.

5

GENERAL INFORMATION

Conference registrationOn-site registration for the conference will take place Tuesday through Thursday at the times listedbelow. In addition, short-course and tutorial participants may register for the conference at theshort-course or tutorial registration times.

Tuesday, June 12, 2012 14:00 – 17:00 Light Hall north lobbyWednesday, June 13, 2012 07:45 – 08:45 Langford Auditorium lobbyThursday, June 14, 2012 08:00 – 09:00 Langford Auditorium lobby

Internet accessWireless internet access is available throughout Light Hall and Langford Auditorium. The SSIDfor wireless internet access is “vummiv”. This access point is unsecured, and the SSID may notbe broadcast. Hence, it may be necessary to manually connect. There may also be a securedaccess point with an identical SSID. Please do not attempt to connect to the secured access point.Additional instructions are available at the VUMC Help Desk website, or by calling 615 343 4357(34357 if on campus).

MealsA continental breakfast and boxed lunch will be provided for those attending Bill Venables’ shortcourse Monday June 11th. No meals will be provided for tutorial participants on Tuesday June12th. However, beer, wine, non-alcoholic drinks, and light hors d’oeuvres will be served during theopening mixer Tuesday evening (16:30–18:30). Breakfast will be provided for all participants themornings of June 13, 14, and 15 (Wednesday, 07:45–08:45; Thursday and Friday, 08:00–09:00).Lunch will be served for all registrants the days of June 13 and 14. All participants are invited toenjoy barbecue buffet with sides, including vegetarian options, beer, and non-alcoholic drinks dur-ing the Wednesday evening poster session. Each of the conference breaks will offer a selection ofdrinks and snacks.

The conference banquet will be held Thursday evening at the Country Music Hall of Fame indowntown Nashville. Admission is by ticket only. Shuttles departing from the Round Wing drop-offpoint, just outside Langford Lobby, will begin at 17:30. Return shuttles will begin at 20:00 and con-tinue until 22:30, and make stops at each conference hotel, Gillette House, and the 25th AvenueGarage. Cocktail hour will begin at 18:15. The museum will be available during the cocktail hour.Dinner will be served at 19:15. For those driving separately, parking is available at the Pinnaclebuilding near the intersection of Demonbreun and 3rd Avenue. Parking vouchers will be availableat the dinner welcome desk.

There are many outside dining options in the Vanderbilt University area, all within a 15 minute walkof the conference venues. On the campus of Vanderbilt University and Medical Center, there isan Au Bon Pain cafe, the hospital cafeteria and a food court in Monroe Carell Junior Children’s

6

Hospital. There is a variety of restaurants along 21st Avenue South, which runs along the eastperimeter of the campus. There is also a cluster of restaurants at the corner of West End Avenueand 25th Avenue South.

Shuttle ScheduleThroughout most of the conference, shuttles will run continuously between the participating con-ference hotels and one of two conference locations: the Vanderbilt Student Life Center, and theRound Wing drop-off point, which is in close proximity to Langford Auditorium, Light Hall, andMedical Center North, and is a short walk from the Student Life Center. The beginning and endingpoints, and operating times are listed below for each day of the conference.

Monday, June 11 Hotels to/from Vanderbilt Student Life Center, from 07:15 until 18:00.Tuesday, June 12 Hotels to/from Round Wing drop-off point, from 07:15 until 19:30.Wednesday, June 13 Hotels to/from Round Wing drop-off point, from 07:15 until 21:30.Thursday, June 14 Hotels to/from Round Wing drop-off point, from 07:15 until 19:30.Friday, June 15 Hotels to/from Round Wing drop-off point, from 07:15 until 13:30.

Beginning at 17:30 on Thursday, there will be additional shuttles to take conference attendeesfrom the Round Wing drop-off point to the Country Music Hall of Fame for the Conference Dinner.Starting at 20:00 shuttles will begin returning dinner guests to their hotels, Gillette House, and the25th Avenue Garage. The final shuttle will depart from the Country Music Hall of Fame at 22:30.

Smoking policyThe Vanderbilt University Medical Center is a smoke-free facility.

Emergency informationThe phone number for fire, police, and medical emergencies in the United States is 911. Whenusing Vanderbilt phones, you must dial 9 first to get off-campus lines. To contact Vanderbilt Univer-sity Police for non-emergency matters, call 615 322 2745 (22745 from campus lines). For urgentconference matters, call Stephania McNeal-Goddard at 615 322 4924.

7

PROGRAM COMMITTEE AND CONFERENCE SPONSORS

Program CommitteeMatt Shotwell (Chair) Claudia BeleitesDirk Eddelbuettel John FoxBenjamin French Tal GaliliJeffrey Horner Andy LiawUwe Ligges Steve MillerKate Mullen Bill PikounisHeather Turner Ravi VaradhanAchim Zeileis

Conference sponsorsRstudioRevolution AnalyticsTIBCOGoogleAmerican Credit AcceptanceOpen AnalyticsTaylor & Francis PublishingSpringer PublishingSage PublishingDepartment of Biostatistics,

Vanderbilt UniversityAmerican Statistical Association,

Middle Tennessee Chapter

Scholarship sponsorsRStudioRevolution AnalyticsTIBCOAmerican Statistical Association,

Middle Tennessee Chapter

8

useR! 2012 PROGRAM

Monday 11th June: Short Course: Statistical modeling in the R contextRegistration for Bill Venables’ short course begins at 07:30 in the Student Life Center (SLC) lobby. A conti-nental breakfast will be served from 07:30 until 09:00. The morning session begins in the SLC CommodoreBallroom at 09:00 and ends at 12:30, with a coffee break at 10:15. Lunch will be served from 12:30 until13:45. The course resumes for the afternoon at 14:00 and ends at 17:30, with a break at 15:45.

Tuesday 12th June: TutorialsTutorial registration begins at 07:00 in the north lobby of Light Hall. Morning tutorials will be held from 08:30until 12:00, with a break for coffee at 10:00. Lunch will not be catered for tutorial participants. Afternoontutorials will be held from 13:30 until 17:00, with a break at 15:00.

Tutorials are located in three separate buildings: The Student Life Center (SLC), Light Hall (RLH), andMedical Center North (MCN). These buildings are highlighted on the smaller campus map. Tutorial roomassignments are listed in parentheses, e.g., (SLC A) indicates Student Life Center, Commodore Ballroom A.

Morning Tutorials

• Terri Scott & Frank Harrell: (SLC A) Reproducible research with R, LaTeX, Sweave, & knitr• Uwe Ligges: (RLH 214) Writing efficient and parallel code in R• Dirk Eddelbuettel & Romain Francois: (RLH 411) Introduction to Rcpp• Douglas Bates: (RLH 202) Fitting and evaluating mixed models using lme4• Jeremiah Rounds: (MCN C2209) RHIPE: R and Hadoop integrated programming environment• Jeffrey Horner: (SLC B) Building R web applications with Rook• Brandon Whitcher, Jorg Polzehl, Karsten Tabelow: (RLH 415) Medical image analysis in R• Richard Heiberger & Martin Maechler: (RLH 419) Emacs speaks statistics• Olivia Lau: (SLC C) A crash course in R programming

Afternoon Tutorials

• Hadley Wickham: (SLC A) Creating effective visualisations• Josh Paulson, JJ Allaire, & Joe Cheng: (RLH 202) Getting the most out of RStudio• Romain Francois & Dirk Eddelbuettel: (RLH 411) Advanced Rcpp usage• Terry Therneau: (RLH 415) Design of the survival packages• Martin Morgan: (MCN C2209) Bioconductor for high-throughput sequence analysis• Max Kuhn: (RLH 214) Predictive modeling with R and the caret package• Robert Muenchen: (SLC B) Managing data with R• Barry Rowlingson: (SLC C) Geospatial data in R and beyond• Karim Chine: (RLH 419) Cloud computing for the R environment

Early Registration & Opening MixerEarly conference registration will be held Tuesday evening from 14:00 until 17:00 in the north lobby of LightHall. All conference attendees are welcome to join us for drinks in the Langford lobby from 16:30 to 18:30.Beer, wine, non-alcoholic drinks and light snacks will be available for all attendees.

9

WEDNESDAY, JUNE 13TH

07:45 Registration and Breakfast - Langford Lobby

08:45 Introductory Remarks - Langford Auditorium

09:00 Introductory Keynote - Langford Auditorium - Chair: Frank Harrell Jr.Di Cook Every plot must tell a story - even in R

09:50 Kaleidoscope Ia - RLH 202 - Chair: Benjamin FrenchBenjamin Nutter Simplified reproducible research using lazyWeaveMichael Rutter Predicting dangerous E. coli levels at Erie, Pennsylvania beaches using RHadley Wickham Package development: the easy wayKaleidoscope Ib - RLH 208 - Chair: Rameela ChandrasekharDavid Smith Applications of R in businessEric Stone Give your data a listenK

alei

dosc

ope

I

Heather Turner Modelling the effect of social mobility on limiting long-term illness

10:50 Break - Langford Lobby

11:15 Bioinformatics - RLH 202 - Chair: Brandon WhitcherDaniel Connolly Integrating R efficiently to allow secure, interactive analysis within a clinical data warehouseKyle Covington Gene expression analysis in Red-RJean-Eudes Dazard R package ROCS for inferring specific protein-protein interactions in AP-MS dataPaul Kowalczyk Knowledge discovery in neglected disease databases: using R for data visualization, analysis

and miningVisualization - RLH 208 - Chair: Hadley WickhamJean-Christophe Aude SVGMapping: an R package to map ’omic’ data sets onto pathways templatesDavid Kahle ggmap : Interfacing ggplot2 and RgoogleMapsMarie Vendettuoli Interactive hammock plots for visualizing categorical dataYihui Xie cranvas: Interactive statistical graphics in R based on QtTeaching - RLH 512 - Chair: Leena ChoiBrooke Anderson bespoke: A package to custom-make online web applications of statistics homework and prac-

tice problemsMine Cetinkaya-Rundel Integrating R into introductory statisticsColin Gillespie Teaching R to large first year classesEdith Seier Randomization methods in introductory statistics coursesSurvival Analysis - RLH 214 - Chair: Terry TherneauNicole Ferguson msSurv, an R package for nonparametric estimation of multistate modelsKathleen Jablonski A pipeline for analysis of SNP arrays for longitudinal studies (PASALS)Stephanie Kovalchik Absolute risk models and calculators for clinical use in R

Focu

sI

Jim Porzak Subscription survival analysis in R

12:35 Lunch - Langford Lobby and Tent

10

14:00 Invited Talk - Langford Auditorium - Chair: Bryan ShepherdBryan Hanson HiveR: 2 and 3D hive plots of networks

14:45 Invited Talk - Langford Auditorium - Chair: Bryan ShepherdSimon Urbanek Web-based interactive graphics and R in the cloud

15:30 Break - Langford Lobby

16:00 Commercial Database Applications I - RLH 214 - Chair: Przemyslaw BiecekSeonghak Hong RHive in a data scientist’s tool boxMark Hornick Providing scalable, transparent access to database-resident data for efficient enterprise ad-

vanced analyticsPatrick McCann Parallel apply functions for in-database distributed scoringData Mining - RLH 202 - Chair: Tal GaliliJoseph Rickert Introduction to R for data miningTaylor Arnold hdlm: User oriented, high-dimensional linear model estimationMax Kuhn Rules, Rules, Rules! Regression modeling using the cubist packageStatistical Methods - RLH 208 - Chair: Jonathan SchildcroutMalika Charrad Finding the relevant number of clusters in a data set : Nb.clusters packagePaul Schuette Power and sample size for safety registries: new methods using confidence intervals and saw-

tooth power curvesShubing Wang autoLDA, an R-package for automated longitudinal data analysisGUI Extensions - RLH 512 - Chair: Sharon PhillipsSandra Griffith Developing a context-specific plug-in for R Commander: Lessons learned from a longitudinal

data Analysis training in a resource-limited settingJyotsna Kasturi EZ-R4Excel: unleashing the statistical power of R in Excel

Focu

sII

Jocelyn Sendecki A simple RExcel interface for Bayesian adaptive clinical trial enrollment

17:05 Lightning Talks - Session A (RLH 202) - Session B (RLH 208)

18:15 Poster Session - Langford LobbyDrinks and a barbecue buffet will be served during the poster session.

21:00 Adjourn for Day

11

LIGHTNING TALKS

17:05 Session A - RLH 202 - Chair: Jennifer ThompsonDouglas Adams Animating geom tile visualizations by combining ggplot2 and animation reveals daily symptom

variability and patterns within cycles of chemotherapyJean-Christophe Aude SVGMapping: an R package to map ‘omic’ data sets onto pathways templatesWinston Chang New ggplot2 geoms for visualizing data distributionsEdwin de Jonge Interactive tableplotsRyan Elmore Using R for scraping dataGarrett Grolemund Dates and times made easy with lubridateTim Hesterberg Two packages: dataframe, aggregationDerek Hoffman R use in order fulfillment at John DeereRonald Pearson Developing the ExploringData packageYihui Xie Go social coding! Make open source more open!Session B - RLH 208 - Chair: Hui NianErich Neuwirth Excel is better for statistics than you think, thanks to RChristine Buske Diving deepeR: mining zebrafish behavior data with RLaura Osorio Olvera Analysis and modeling of deforestation in Coyuguilla, Guerrero, MexicoWoo Jung Overview of using PL/R in Greenplum with examplesJared Knowles Using R for policy research in a state education agencyCuilan Gao How to make a bioconductor package using RChristopher Paciorek Developing a tool in R for general inference for hierarchical modelsKagba Suaray Simulating censored data in RZoltan Toth R at Prezi

Ligh

tnin

gTa

lks

Landon Jensen JMP+R

12

POSTERS

18:15 Poster Session - Langford Lobby1. Patrick Breheny Visualization of regression models using visreg2. Jae Brodsky Some challenges of using R in a regulatory environment3. TszKin Julian Chan Econometrics of network4. Karim Chine Towards an R-based data operating system for the the science clouds5. Leena Choi Profile likelihoods and the likelihood paradigm: The R Package ProfileLikelihood6. Anthony Damico The SAScii function8. Bryan Hanson Implementation of ANOVA-PCA in R for multivariate data exploration9. Bryan Hanson HiveR: 2 and 3D hive plots of networks10. Sebastian Hoffmeister The most general GUI-solution for R11. Heewon Jeon SNA with R text mining12. Keehoon Kim Modeling of volcanic sound radiation using finite-difference time-domain method in R13. Helena Kotthaus A JVM-based compiler strategy for the R language14. Emilio L. Cano Open platform for quality methodologies: a Six Sigma framework for competitiveness15. Spencer Maynes Fitting sinusoidal hysteresis in R: The R package fitellipse16. Rodger Oren Project managment factor text analysis with R17. Nicole Radziwill Exploratory analysis of 2010 Starr Hill Brewing Company production data18. James Robison-Cox Discussion of R programming topics19. Andrew Timm The MDS-GUI: A graphical user interface for comprehensive multidimensional scaling applica-

tions.20. Kevin Wright The agridat package21. Dean Yergens RMail: Automated emailing of Sweave reports22. Dean Yergens Web-based epidemiology analytic system utilizing R23. Edwin de Jonge Interactive inspection of large data24. Brandon Whitcher RSimpleITK: An R interface to the Insight Toolkit with SimpleITK

Post

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25. Daniel Kaplan Teaching calculus with R

13

THURSDAY, JUNE 14TH

08:00 Breakfast - Langford Lobby

09:00 Thursday Keynote - Langford Auditorium - Chair: Yu ShyrKevin Coombes Cell lines - chemotherapy response - and the need for reproducible research

09:50 Kaleidoscope IIa - RLH 214 - Chair: Qingxia (Cindy) ChenVijay Barve FlickRKarim Chine R, the cloud and the data delugeJeroen Ooms Scalable embedded scientific computing with OpenCPUKaleidoscope IIb - RLH 202 - Chair: Chris SlaughterWinston Chang Tracking down bugs with bisect toolsGarrett Grolemund Dates and times made easy with lubridateLeo Osvald TraceR: A framework for understanding R performanceKaleidoscope IIc - RLH 208 - Chair: David AfshartousRobert Muenchen Helping your organization migrate to RDrew Levy Graphical tool for disambiguation of bias in health research

Kal

eido

scop

eII

Emilio L. Cano Decision making under uncertainty: R implementation for energy efficient buildings

10:50 Break - Langford Lobby

11:15 Business Applications - Langford Auditorium - Chair: David SmithEmmanuel Senyo Fianu Risk management: An econometric analysis of risk in energy market.Jackie McCush Social network analysis for online group gamesRuan Rossouw General process data management frameworkSamuel Thomas Using R to evaluate quality auditor consistency for a call centerEnvironmental/Spatial Statistics - RLH 208 - Chair: Lily WangNarayani Barve Spatio-temporal analysis of climatic data in understanding species’ distributionsNicholas Crookston Modeling North American vegetation: solving a 46-level classification problemJonathan Lees Rquake: Earthquake hypocenter analysisColin Rundel rgeos: spatial geometry predicates and topology operations in ROfficial Statistics - RLH 202 - Chair: Heather TurnerJan-Philipp Kolb Generation of synthetic universes for micro-simulations in survey statisticsJerzy Wieczorek Interactively mapping significant differences between areasMark van der Loo New data correction features of editrules and deducorrectWeb Applications - RLH 214 - Chair: Jeff HornerJoe Olson Using R with node.js as a web serviceThomas Roth Web applications for statistics in quality management

Focu

sIII

John Verzani Creating interactive web pages within R: The gWidgetsWWW2 package

14

12:35 Lunch - Langford Lobby and Tent

14:00 Invited Talk - Langford Auditorium - Chair: Ben SavilleNorm Matloff Parallel R, revisited

14:45 Invited Talk - Langford Auditorium - Chair: Ben SavilleYihui Xie & JJ Allaire New tools for reproducible research with R

15:30 Break - Langford Lobby

16:00 Commercial Database Applications II - RLH 512 - Chair: Mark HornickPrzemyslaw Biecek Parallel data processing with R on combined IBM Netezza 1000 and HPC clusterAntonio Piccolboni Slicing and dicing big data with RHadoop/rmrJung Woo High scale in-database modeling in Greenplum with RDimension Reduction - RLH 214 - Chair: Uwe LiggesNatalia Becker penalizedSVM: feature selection for SVM classification in high dimensionsJim Harner rknn: an R package for random KNN classification and regression with variable selectionMartin Sill Sparse principal component analysis using stability selectionReproducible Research - RLH 202 - Chair: Xi (Steven) ChenJason Bryer Using the makeR package for managing document building and versioningSøren Højsgaard Rmarkup - a very simple tool for literate programmingAndrew Redd harvestr: A simple reproducible parallel simulation frameworkHigh-performance Computing I - RLH 208 - Chair: Dirk EddelbuettelSai Kumar Popuri Implementation of the binomial method of option pricing using parallel computing in RJustin Talbot Efficiently executing R code on modern hardware

Focu

sIV

Zubin Dowlaty Building distributed intelligent systems for the enterprise with R

17:05 Special Invited Discussion - Langford Auditorium - Chair: Douglas BatesDouglas Bates

“What other languages should R users know about?”Chris FonnesbeckDirk Eddelbuettel

18:05 Shuttle to Conference Dinner - Outside Langford19:15 Conference Dinner (ticket required) - Country Music Hall of Fame

15

FRIDAY JUNE 15TH

08:00 Breakfast - Langford Lobby

09:00 Invited Talk - Langford Auditorium - Chair: Bill PikounisTim Hesterberg A tale of two packages

09:50 Engineering/Physics Applications - RLH 202 - Chair: Ming LiJames Foadi cRy: a specialised software for statistical applications in x-ray crystallographyKeith Halbert crackR: Probabilistic prediction of airframe fatigue damageAlastair Sanderson Measuring excess energy from galaxy feedback with mathematical modelling in RHigh-performance Computing II - RLH 208 - Chair: Dirk EddelbuettelGiuseppe Bruno Metropolis-Hastings goes parallel on a GPU: first experiences and resultsMichel Lang BatchJobs and BatchExperiments: Abstraction mechanisms for using R in batch environmentsKarl Millar Scaling R to internet scale dataProgramming - RLH 512 - Chair: Chris FonnesbeckAndrej Blejec angleR: calculate with angles given in degrees, minutes and secondsJoseph Conway PL/R: The fusion of PostgreSQL and RAlexander Matrunich R as sms-processing and report-generating tool in exit-pollRegression Analysis - RLH 214 - Chair: Max KuhnAndreas Alfons A toolkit for cross-validation: The R package cvToolsTatjana Kecojevic Smooth bootstrap inference for parametric quantile regression

Focu

sV

Giovanni Petris Outliers and structural breaks in structural time series

10:50 Break - Langford Lobby

11:15 Closing Keynote - Langford Auditorium - Chair: Frank Harrell Jr.Bill Venables R, Quo vadis?

12:15 Concluding Remarks - Langford Auditorium

12:35 Adjourn

16

NOTES

Printed abstracts will not be provided at the conference. The abstract booklet will be available for downloadat http://biostat.mc.vanderbilt.edu/UseR-2012.

Please note that there are three different formats for contributed talks:

useR! Kaleidoscope: These sessions will give a broad overview of the many different applications of Rand should appeal to a wide audience.

useR! Focus Sessions: These sessions will focus on topics of special interest and may be more technical.

useR! Lightning Talks: Following success last year, these sessions, with oral presentations of 5 minutes,provide a platform for participants to speak on any R-related topic and should particularly appeal toR newbies.

Information for Speakers, Session Chairs, and Poster Presenters• Presenters of Kaleidoscope and Focus contributed talks, please note that your talk is scheduled for

17 minutes, followed by 3 minutes discussion.

• Presenters of Lightning talks, please note that your talk is scheduled for 5 minutes, with 1 minutequestion/transition time. A variation of the pecha kucha and ignite formats will be used, in which youmust provide 15 slides to accompany your talk and each slide will be shown for 20 seconds. Slidesmust be provided in PDF format and sent by email to biostat@vanderbilt.edu by 17:00, Monday, June11, 2012.

• Each useR! Invited Lecture will last 40 minutes, with 5 minutes at the end of the lecture reserved forquestions.

• Technical details: All lecture rooms are equipped with an LCD projector and a computer or laptop thatis connected to the internet. Unless speakers require their own laptop for software demonstrations,speakers are expected to ensure that a PDF of their presentation slides is on the computer provided,before the start of their session. For presenters of Lightning Talks, this is achieved by sending theslides in advance as described above; for presenters of other talks, please see a conference organizerto arrange transfer of your slides. Conference organizers will be available in the lecture rooms atleast 10 minutes before the program starts each day and at least 10 minutes before the programrecommences after each coffee or lunch break. Please arrive well before the start of your sessionand introduce yourself to the Session Chair. During your talk, please look out for the countdown cardsthat the Chair will use to signal that your time is coming to a close.

• Session Chairs: Please arrive well before the start of your session to meet the speakers and ensurethat they have a PDF of their slides on the room computer. Countdown cards will be provided tohelp you keep the speakers to time. If we are aware that a speaker is missing up to 2 hours prior tothe relevant session, then other talks will be brought forward and a notice placed on the conferencewebsite, otherwise we request that Chairs keep to the timetable, and in the event of a missing speaker,advise the audience to go to an alternative talk.

• For those preparing posters, the poster boards can accommodate posters of dimension smaller than4 feet tall and 6 feet wide. Poster presenters should arrive at least 15 minutes prior to the start of theposter session to put up their poster. Regular posters will have allocated boards as numbered in theschedule; late-breaking posters can be put up on any unnumbered board. Presenters should stay inthe vicinity of their poster for the first hour of the session. Please take down your poster at the endof the session; if you are unable to stay until the end, remaining posters may be removed, but will beavailable at the registration desk the next day.

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