Network Text Analysis of Mailing Lists UseR! Rennes 2009

Angela Bohn, Ingo Feinerer, Kurt Hornik, Patrick Mair, Stefan Theußl

7/10/2009 A mailing list social network

R-help mailing list:

Jan 2008 to May 2009 Number of authors: 5326 Number of mails: 41457 Avg. degree: 4.4 Diameter: 7

Legend:

Author A answered Author B Combine SNA and TM

I Goal: Combine social network analysis (SNA) and text mining (TM) to find out more

I Data: Mailing lists R-help and R-devel

I Packages: sna and tm I Results:

I “Interest maps” of R users I Detection of bottlenecks in communication Data preparation for social network analysis

I Create a social network from e-mail headers (tm): From: dwinsemius at comcast.net (David Winsemius) Date: Thu, 30 Apr 2009 18:49:55 -0400 Subject: [R] Extracting Element from S4 objects In-Reply-To: <[email protected]> Message-ID:

Author A: ''Hallo, I have a question.''

Author B: ''This is the answer.'' Author B

Author C Author D Author C: ''This, too.'' Author D: ''And this.'' Author D: ''And this.'' Author A

Author A: ''Thank you.''

I Find aliases: knoblauch at lyon.inserm.fr (knoblauch) knoblauch at lyon.inserm.fr (Ken Knoblauch) Levensthein Distance: ken.knoblauch at inserm.fr (Kenneth Knoblauch) agrep(base) ken.knoblauch at inserm.fr (Ken Knoblauch) Data preparation for text mining E-mail subjects: [R] passing args from the command line [R] navigating ggplot viewports [R] how to go to a line in R ... Term Frequencies (termFreq(tm)):

building device loess vegan rcmdr posixlt transformation 11497configure urgent labels describe 13231 usage time git hist automatically enable regions merging defining ebimage strings recoding sign selecting detected summary conflicts 11527 logit accessing subset summary concerning produces sun recursively results dynamic segfault fitting linux sequences inf rmpi prettyr documentation 10000 date left 8859 dataframe compile macos posixct string article dll correlation effects basename ratio getclass manual statistics res space recursion change sorting interface change actual

mirror calculating hardy double correction simulation anova boxplots zero nnet comparison doc difftime lapply computing distance measures inverse 12742 expression maximum original roadmap table adding trivial section days var censored wish exe nas type 11511 correction pnorm resuts compute 2008 note 10744 ascii boxplot doesn automatic filename scores coefficients violation mac seq gee utf executable garbage margins shlib coxph competing spearman family paired multinomial google alpha x86 computation legend harddisk weights probabilities null 10571 jpeg average v10 methods design xls 1000 quotes cmyk called broke locales readline installation contour thrown circular crash memory dependent dnbinom don gls definevar system fails leak available attributes cran syntax script perl reduction trying merge choose intro unix double arima partial simulate config failing programming feature grid changing dup join reproducible plm specifying clipping embedding readbin background upper unable default xtfrm objectelegant zip free size rpart aggregate checkenvironments recent plotmath inside transform sgi unable timeseries estimates cache cpu focus effect polynomial inconsistency producing emacs pattern optim fitdistr axis posting containing equations symbols macintosh indexing defined doesn pairwise equation correct sequence compilers textconnection incomplete including outdated printing sample code interrupting 11495 rprofile deep arima bar dealing font editor nested whitespace gui constrained callbacks cbind congiure encoding mishandled creation efficiently mac extracting overwriting pros speedup printing finance comparisons libraries 11231 permutation components plus contrasts nls strategy minor labels calculations discriminant 13292 finding extract writing browser intel information gsub add weights function removing chisq risks loop bayesian var field test rcmd glm demo false conditional rout copy normality negative numerical mixture classes negative outputs generics looking strsplit null esc 12636 words reshape etc 13361 folder finite parent factor goodness histograms log2 model structures digits unix subsetting table mode filled blocking skip exporting zoo scripts xpd names add prcomp loading sapply fools charts unit directory matrices beta updating odesolve build osx popup ignores curves generic message network behaviour update gui 10589 scope unchange bootstrap aggregate example arguments dispatch detectable treatment transferring import upgrade sslogis residuals expressions reference attribute identify models document counting inheritance structure wrong guis levels according endings call adj interaction generic mandatory greek sort ggplot chi slow serialize max quantile addition clean api nas abline true window identifying dim child igraph optimization storing matrices cox iqr modification space itemize inserting lexical duplication format vignette accessing nulls existing strptime contingency cmp label index assignment fonts persp attributes makevars 10801 definite fit characters won read 11499 formatting solution rdata drop1 conversion surprising comparing complex seq dates wrong dimension condition found tables returning generate moving strange optim merge saveplot lend bundle external residual autocompletion array path recursive javareconf sequence model terms arguments library 13533 incoherent sexp latex checking validation char descriptor forcing util stack generalized logistic sampling report able computing wireframe fits builds rgui intersection stack elements distributions overdispersion product split spss mkl manipulation block strip predict fonts title transfer sens manipulations dimensions fail dead compilation miktex identify paste panel merging parser variables overlap coerce copy 13475 10746 mapping shouldn singular loops formulae checkout surface stepwise shapiro downloading central conflict iterations crashes errors combining snow type ifelse statements 12016 10635 normal counts tcltk windialogstring aka calculate insert task computer equivalent issues horizontal value manova text analyzing scatterplot percentages passed rnorm display program functions apply robust code elements suggestionsquestion rfc based mass suppressing set roc access namespace allocation generated standalone collection sensitivity crashes strings callcc condition understanding intercept produce thread formatting touch amount correctly combination match hmisc class dimensional setting maps heatmap fft args binding 13703 barchart rank 10776 bit bugfix delete bad manipulating help iterator failure permanent party update subscript devices script overlay letter lattice operations getsrclines rjava collection calling behavior changes stacked parsing cut regarding scales objects single legality avoiding modifying color plotting xyplot allocate selected duplicated nesting embedded cycle weibull threads testing streams 13620 rmysql interactive typo times scale display externalptr editor cat parametric 11281 calls argument execution bars function alias rmath segments maintained topic accuracy starting creating dependencies blah iso mle export median extensions proportions locale lib64 input r44608 server devel anrpackage ubuntu title clash criteria matplot pkgs axis binomial core quantile updating x86 basic odd creating intervals references release level parameters x11 parse licensing proportional command stepaic decimal feature unknown dev increase constraint symbol buffer bug calculation adding sort offset frf2 jri warnings proposed time expression debian summer svnversion excel load messages files action object items console parallel path setting meaning history postscript mailing changelog frames character convert mgcv survreg require issue export popular fast layout search rjava persists osx compile 2008 frames messing additional 10592 standard overplot convergence trellis optimization trellis crasher java kruskal conditionally rsitesearch parallel lme4 xml timestamp longitudinal 13284 upgrading aic creation pages expressions bizarre constraint lmer rows weighted invalid gfortran assign obtaining median identical antialias 12931 undefined language vertical controlling likelihood spline availability names scripts feasible related regressions university crash soc09 2003 covariates week extension jri relative single scoping remove string 2009 stuff unexpected garch 11034 lower console values development fourier integer avoid simple length spaces tcl wrapping vec item connections weird grid deleting message segfaults etc subject windows create puzzled cmdregistry foreign dependency figure 48590 symbol daily forest please defining nan web label scatter noncentrality fails split subsets paste macports warningvia snapshot operation listing gam hazard preferred patched clusters observations questionrun check comparison selection key fedora 13551 extrapolating versus results compilation getting map calculation usage x11 rterm precision linear maximum columns interface par sum current bit page mixed batch dataset html passing 13699 print beginner definition 8192 top signal col ess character lapply multi questions 11334 dll option importing cmd coordinates renaming tkgraph valgrind hist 10600 write common samples exclude raster giv hoc compiling hash bounds writting automatic subsetting solved library primitive prod actions aborting logical preserve score warning installed loosing don specify forecasting svm progress create holtwinters rpart automatically sec panel rushing mfrow versions boxplot assignment tree linux distance difference incorrectly deviation difficult repository extending post cor fix figures generating news gsub forge rgl barplot gnu xtable messages subscripting concatenate retrieving local arithmetic changed gram native upside rmysql convert cluster causes spatial sql advice 11493 13487 blas dummy quote matrix statistical failed constructing ability maptools 13646 false equal vectors rownames dput tcltk zoo c99 row gradient try source help sweave faster linkingto installing fitting graphical amd64 graphics png roxygen rtools28 advanced pairs solaris instead using arrays heron sessioninfo trees variable truncated odd variance internal locate unexpected calculating descriptive yscrollcommand recommended differences parameter info r2winbugs smooth roracle wishlist result 13631 user chisq lme word pdf constraints spam set method found questions machine regression foo image result 10945 sas chol2inv hook link unequal inaccurate theorem predict downloading math2 str broken filter platform positive beta interpreting installation comments r45591 random unique differences manipulate win capturing dimnames exits plotrix fisher colour compiling packages changing repositories 12520 series trouble containing creates connection recursions matching install limit 13161 specific modelling installing platforms costs avoid frequency swig naming reading unclassified stated relative troubles integers selection matrix biplot versionbugs substitute types app slot search rbinom via sink division perl sub query examples rprofile limit 13686 testing 13538 suppress 12112 list improving nlme qqnorm return true underscore functions range loading adds stata interactive conditionally program frequencies strange trend wise main transforming effects mpi warnings dropping printed rodbc separate color date 10666 directory nls line issues importance sets incorrect auto nonlinear random read probability analyzer survfit integer java catch unsigned simple splitting scaling predicting cons comments scatter call tinn operator dir enhancement conform little solve debian tests lines loops zlib quote executing default training vignettes programming experiments multiple 10565 solving colnames calling device cran snow remove course axes passing event particulars returns window utf iconv builder datasets expected bivariate derivs concatenating argument specifying overflow codes dos plasma step transperancy significant colsums locating errorfatal permutations polr extract spec glm lrm drop intentionally rendering cumulative regular loses stats weighted coords labelling import name bug cdf png view bwplot cairo square lapack defined bar rgl gamma estimation setdiff constructor tiff confidence xlim ann txt custom input resolution dump simulate form methods symbols compare 000 digits closing root links indexing kde 10953 save directories matlab element friendly empty gaussian google decomposition mean coefficient legend 13515 caused performance rmpi grep poisson plot estimate match multiplication output version gpl statement base raw schemes seed applied range following replicate value support csv custom data integrate marks efficient survey rgui contain 13494 column aov generate multi funtion variables distributing modeling line guide gdb eval handle algorithm applying running bounded documentation levels gregexpr size previous rbind runs sub invalid histogram embeding accuracy draw expand file newbie importing pre acf debugger influences environment control xyplot related freebsd overriding drawing dataframes regex variable suggested rng changes svn created plotting max sig please applied 11537 reset colours cross start postinstall 9682 missing installer rodbc rhel study inconsistency rbuildignore tests format significant link source correlated formula behavior sometimes routine displaying save sem odp integration frame loaded safe defaultfont odfweave process limits address log10 removing howto numeric 13391 formula panels conversion packages empty regular converting sig xlim docs bottom command clarification specification fwd suggestion application car dynload column defaults pass query randomforest makefile limits datapass 11399 strsignif correct binary conf solve errors optional irrelevant lists tapply multidimensional style example clobbered functional page normal exponential 13283 thanks rep solaris pie else tutorial randomly 100th arith similar confusion style valuesunion installed build embed uninstall zero colors sprintf shortpathname impossible install factors package cross literate minimal site centos parallelr diagram errorvector tarball 13454 switch postscript mistakenly couldn operator tick dates 11470 dlls failure scope clustering neural shape means aix buggy dendrogram decreasing list interpretation suggestion graphic 13711 header statistic prediction stringsasfactors counting smoothing winxp optimize factorial repeated ignored diff kernel graph user download anova download assign recursive patchoptions effect proc finding namespaces par parsing fortran usr assigning measure system breaks print idea binary analysis categorical third encoding local handling level spss ops internal fixed windows auto box equivalent vista libs times file quality posixt revision storage classes checking replace numerical overlapping combinations position writing power survival speed rows select randomly efficiency length array curve 11054 deal request sample filtering class ols handling speed unsorted means gamma closed 2846 ylim write outside objects maintainer workspace crashy fault quick win start covariance figure models rscproxy fitted ifelse key buildingdepending chi splus saving row bin matching method huge rin perils labeling rank issue closure quality behavioural options package suggestions poly gctorture interval cocoa faq produced smooth segmentation net 2009 quartz count density menu readable distortion colour manual fortran output exporting s4method duplicate compiled estimating plots skeleton tabulation contrast regresion compiler tarballs atomic looping eval response facet numeric settings text despite 13570 mean fitted initialize free squares processing loop passed machine html unlist using searching 11491 fwd memory exec characters test close combine preserved graphs faster bad ticks alternative vista multiple individual significance col ancova request wide levelplot external scatterplot3d cat principal support base distances tkcanvas reading sapply dislikes missing breaks duplicates plots linking symbolic description day return wrapper handle optimisation multivariate based heatmap license log classification biobase plotinclude replacing splinefun dimension 11192 11036 addcomment

ignore weird dotcall name files programs proper component unicode rowsums image standard getting rimage 12540 aliasing option gsoc assigning pca logical pdf graphics rcmdr chart book generation infinite binomial distribution alternative status rrors running entries jpeg behaviour openmpi improvement qplot ubuntu cbind acf parameter posixct 12770 unique index factor mess engine environment fill available cook vectorlines filter database lookup

vectors simulating crosstable 13504 configured license access reference buglet nlminb unserialize frame including 13671

R-help R-devel Word Networks

“lattice”

francesc montane Thierry ONKELINX John Poulsen

Jim Lemon

Mike Lawrence

Paul Murrell remko duursma

Alex Karner Henning Wildhagen Dieter MenneDhruv Sharma Robbie Heremans Judith Flores Michael Kubovy Paul BoutrosBenjamin Tyner Chris BarkerJohn FoxAlex Reynolds Paul Hiemstra Gustaf Rydevik Mark ColettiDavid WinsemiusDimitriGabor Liakhovitski Grothendieck Greg Snow Karl Ove Hufthammer Jon Loehrke Alex ThomasBrown Zumbrunn John Kane Patrick Connolly Steven McKinney Douglas Bates Thomas Roth Daniel Ott Sundar Dorai Raj Katell HAMON Bert Gunter Naomi Robbins Stefan Grosse Mark Wilkinson audrey Rolf Turner Coltrey Mather Brian Desany Steve Friedman DeepayanAaron Arvey Sarkar Andrewjohnclose Jim Price stephen sefick steve K Elo Javier PBLevi Waldron David Chosid Surai Chuck Cleland Bram Kuijper Marianne Promberger Scott R WaichlerBrian Ripley Michael HopkinsMark Difford John Smith Henrique DallazuannaRon Bonner G Draisma Wolfram Fischer Kyle Roberts Saptarshi Guha Andreas Krause RINNERSeth Heinrich W BigelowFerry Weidong Gu Malte Brockmann GOUACHE David Felix Andrews rhelp 20 trevva baptiste auguie lost river jimdare RichardCharilaos Cotton Skiadas PALMIER Patrick CETE NP INFRA TRF

Ryan Hafen Daniel Kornhauser Mark Leeds Joachim Heidemeier Dr Patrick Hausmann ravi Mark Heckmann Ben Bolker Paulo Cardoso Richard and Barbara Males Dan Kortschak Troels Ring

Christos Argyropoulos William Deese Gavin Simpson

Dimitris Rizopoulos

Qian R

Don McKenzie Pieter van der Spek Leandro Marino Tyler Smith

Andrew Beckerman Ola Caster Andrew McFadden Rebecca Fisher SebastienSamuel Bihorel B Civ USAF AFMC AFRL RVBXI Cable Tom Bonen Iago Mosqueira

Ranjan Maitra Einar Arnason Tom Cohen Juliet Hannah Gary Nelson Word Networks

“ggplot”

Sorn Norng Ivan Alves haettulegur Tena Sakai

btcruiserMikhail Spivakov

Dieter Menne

Ian Fiske Tom Cohen Bernd Weiss Chris Friedl Zeljko Vrba Davidstephen Hajage sefick Thierry ONKELINX Adam Marsh Uwe Ligges PJohn E David Kane Thompson Wayne F Ptit Bleu baptiste auguie Gabor Grothendieck Domenicoba8 Dave Vistocco FelipeMurray RustCarrilloPaul Emberson Albin Blaschka Matias Gallego Liberman Spinu Vitalie Mike LawrenceRainer M Krug simeon duckworth Josep Maria Campanera Alsina Megh Dal Paul Murrell Pedro de Barros Michael Frumin guillaume chaumetTribo Laboy Henning Wildhagen Ronggui Huang Harsh hadley wickham Felix Andrews Erich StuderusSebastian Weber Ingo Michaelis

Marianne Promberger Tylere Couture Christopher DavidBernd Desjardins Engelmann MUHC Research Martin Rittner Ista Zahn Etches Jacob Michael Friendly Bernd Ebersberger Avram Aelony Brian Ripley Jason Law Carsten Jaeger jiho Williams Scott Xavier Chardon levyofi Elena SchulzTom Bonen Ben Bolker Jacob Etches Thorsten VogelJuliet Hannah

mihalicza peter Eric

Jason Rupert

Ian Fellows

steve

galneweinhaw

Aric Gregson

Sunil Suchindran stephen bond

Andreas Christoffersen Edna Bell david f Word Networks

“legend”

Yasir Kaheil PALMIER Patrick CETE NP INFRA TRF Felix Andrews Michael Kubovy Tom CohenNeuer Arkadasch Joachim Heidemeier Dr stephen sefick

Peter Flom Levi Waldron Deepayan Sarkar

Tomas Lanczos Simon Pickett Tom Snowden anisha sinnarkar

Wade Wall Michael Head steve Henrique Dallazuanna Patrick Hausmann

Paul Johnson Zeljko Vrba baptiste auguie Dimitri Liakhovitski Lauri Nikkinen Giovanni Petris Jorge VelezSarah Goslee Rodrigo AluizioLuis Ridao Cruz ming kung

Sherri Heck Aparna Vemuri Steve Murray

Gabor Grothendieck Nelson B Villoria Mike Lawrence Mathieu Ribatet kate Brian Ripley Julien Beguin Martin Maechler Felipe Carrillo Mathew Fox Simone Giannerini Anne MarieChristophe Ternes Genolini Duncan Murdoch Markus Gesmann Hans Joerg Bibiko Stanley Ng Mark Farnell yk Avram Aelony Dieter Menne Greg Snow rhelp 20 trevva Uwe Ligges Agus Susanto Pedro de Barros

Tom Boonen Gavin Simpson Bernardo Rangel Tura John John KaneGeorg Otto Thierry ONKELINX Christophe Dutang Lavan yvo David Winsemius

Paul Emberson jimdare Bernd Engelmannhadley wickham Alexandre Aguiar

Erich StuderusCarsten Jaeger mbr Tom Bonen Julia Liu Earl Glynn Marc Schwartz Sarah Vandome Etches Jacob tom soyer ba8 Jim Lemon

Thomas Steiner Matthew Pietrzykowski Olivier ETERRADOSSI valeria pedrinaGeorg Ehret

Rebecca Fisher Samuel B Civ USAF AFMC AFRL RVBXI Cable Word Networks

“boxplot”

Coey Minear Bill Venables

Antje

Mike Lawrence Ben Bolker Felipe Carrillo Amit Patel

Phil taylor Petr Pikal Michael Kubovy Richard Yanicky rich Georg Ehret Zeljko Vrba Brian Ripley Stephan Kolassa Jim Lemon cathelf Frank E Harrell Megan J Bellamy

Sebastian Merz Adaikalavan Ramasamy Marc Schwartz Sebastian Luque stephen sefick S Ellison Cornelis de Gier Petter Hedberg

Kenneth Takagi John Kane Dieter MenneSamor Gandhi Daniela Garavaglia Birgit Lemcke Dimitri Liakhovitski

Gabor Grothendieck Marcin Kozak Uwe Ligges Andreas Christoffersen Coen van Hasselt Tom Cohen Chad Junkermeier Greg Snow James Lenihan HBaize Henrique Dallazuanna Paul Adams Sherri Heck hadley wickham Peter Alspach Tubin jim holtman Corinna Schmitt Bernardo Rangel Tura steveChuck Cleland Aldi Kraja Thierry ONKELINX Marc Bernard Rajasekaramya Chris FriedlDeepayan Sarkar David Winsemius Ken Knoblauch Karin Lagesen David Hewitt

Phillip Porter Kenneth Roy Cabrera Torres Giulio Di Giovanni

Leandro MarinoErik Iverson

Thomas Adams mihalicza peter mm745

Gabriel Rodriguez Marlin Keith Cox Annette Heisswolf Sharon Kuhlmann B goran brostrom

Alex Reynolds Pooja Jain Peter Dalgaard

Matthias Kohl Murlidharan T Nair Jorge Velez Marek Bartkuhn

Keith Ponting Centrality Measures

Notion lattice ggplot legend boxplot

francesc montane Sorn Norng Ivan Alves Yasir Kaheil Coey Minear haettulegur Tena Sakai Bill Venables Thierry ONKELINX John Poulsen PALMIER Patrick CETE NP INFRA TRF Antje Felix Andrews btcruiserMikhail Spivakov Tom Cohen Michael Kubovy Joachim Heidemeier Dr Neuer Arkadasch Mike Lawrence Ben Bolker Jim Lemon stephen sefick Felipe Carrillo Amit Patel Peter Flom Dieter Menne Levi Waldron Mike Lawrence Phil taylor Ian Fiske Deepayan Sarkar Petr Pikal Paul Murrell Tom Cohen Bernd Weiss Michael Kubovy remko duursma Tomas Lanczos Simon Pickett Richard Yanicky Chris Friedl Zeljko Vrba rich Yihui Xie Tom Snowden anisha sinnarkar Alex Karner David Hajage Georg Ehret stephen sefickAdam Marsh Wade Wall Michael Head Henning Wildhagen Thierry ONKELINX steve Zeljko Vrba Uwe Ligges PJohn E David Kane Thompson Wayne F Henrique Dallazuanna Brian Ripley Dieter MenneDhruv Sharma Ptit Bleu Robbie Heremans Judith Flores Patrick Hausmann Stephan Kolassa Jim Lemon cathelf Michael Kubovy Gabor Grothendieck Frank E Harrell baptiste auguie Paul Johnson Megan J Bellamy Paul BoutrosBenjamin Tyner ba8 Dave Murray Rust Paul Emberson Albin Blaschka Zeljko Vrba Chris BarkerJohn FoxAlex Reynolds Domenico VistoccoFelipe Carrillo Dimitri Liakhovitski Paul Hiemstra baptiste auguie Adaikalavan Ramasamy Gustaf Rydevik Matias Gallego Liberman Peter Dalgaard Sebastian Merz Greg Snow Spinu Vitalie Lauri Nikkinen Marc Schwartz Mark ColettiDavid WinsemiusKarl Ove DimitriHufthammerGabor Liakhovitski Grothendieck Sebastian Luque stephen sefick Jon Loehrke Mike LawrenceRainer M Krug simeon duckworth Giovanni Petris Alex ThomasBrown Zumbrunn Josep Maria Campanera Alsina Megh Dal Paul Murrell S Ellison Cornelis de Gier John Kane Rodrigo AluizioLuis Ridao Cruz Jorge VelezSarah Goslee Pedro de Barros Michael Frumin ming kung Petter Hedberg Patrick Connolly Steven McKinney Douglas Bates Thomas Roth Daniel Ott Sundar Dorai Raj Sherri Heck Katell HAMON Bert Gunter Tribo Laboy Henning Wildhagen Aparna Vemuri Mark Wilkinson guillaume chaumet Kenneth Takagi Naomi Robbins Stefan Grosse Steve Murray John Kane Dieter MenneSamor Gandhi Ronggui Huang audrey Rolf Turner Coltrey Mather Daniela Garavaglia Brian Desany Steve Friedman Birgit Lemcke DeepayanAaron Arvey Sarkar Harsh hadley wickham Gabor Grothendieck Nelson B Villoria Mike Lawrence Dimitri Liakhovitski Andrewjohnclose Felix Andrews Erich StuderusSebastian Weber Mathieu Ribatet Jim Price stephen sefick kate Ingo Michaelis steve Brian Ripley Gabor Grothendieck Marcin Kozak Julien Beguin Martin Maechler Uwe Ligges K Elo Javier PBLevi Waldron David Chosid Felipe Carrillo Andreas Christoffersen Surai Marianne Promberger Mathew Fox Coen van Hasselt Tom Cohen Chuckhadley Cleland wickhamBram Kuijper Tylere Couture Christopher DavidBernd Desjardins Engelmann Brian Ripley Mark Difford Marianne Promberger MUHC Research Simone Giannerini Chad Junkermeier Scott R Waichler Ron Bonner Michael Hopkins Christophe Genolini John Smith Henrique Dallazuanna G Draisma Martin Rittner Anne Marie Ternes Duncan Murdoch Greg Snow Wolfram Fischer Ista Zahn Etches Jacob Markus Gesmann James Lenihan HBaize Henrique Dallazuanna Kyle Roberts Andreas Krause Bernd Ebersberger Saptarshi Guha Michael Friendly Hans Joerg Bibiko RINNER Heinrich Ferry Weidong Gu Avram Aelony Brian Ripley Paul Adams Seth W Bigelow Jason Law Stanley Ng Sherri Heck Malte Brockmann GOUACHE David rhelp 20 trevva Avram Aelony Felix Andrews Carsten Jaeger jiho Mark Farnell yk hadley wickham Peter Alspach Tubin lost river Williams Scott Dieter Menne baptiste auguie Xavier Chardon levyofi Greg Snow rhelp 20 trevva Uwe Ligges jim holtman Corinna Schmitt jimdare RichardCharilaos Cotton Skiadas Agus Susanto Pedro de Barros Elena SchulzTom Bonen Bernardo Rangel Tura steve Ben Bolker Chuck Cleland PALMIER Patrick CETE NP INFRA TRF Jacob Etches Aldi Kraja Thierry ONKELINX Marc Bernard Ryan Hafen Thorsten VogelJuliet Hannah Daniel Kornhauser Mark Leeds Tom Boonen Gavin Simpson Bernardo Rangel Tura Rajasekaramya mihalicza peter Chris FriedlDeepayan Sarkar Joachim Heidemeier Dr John Eric John KaneGeorg Otto Thierry ONKELINX Patrick Hausmann David Winsemius Christophe Dutang Ken Knoblauch Lavan Karin Lagesen ravi yvo Mark Heckmann Ben Bolker David Hewitt Paulo Cardoso David Winsemius Richard and Barbara Males Dan Kortschak Troels Ring Jason Rupert Phillip Porter Paul Emberson jimdare Kenneth Roy Cabrera Torres Giulio Di Giovanni Ian Fellows Bernd Engelmannhadley wickham Christos Argyropoulos William Deese Alexandre Aguiar Gavin Simpson Leandro MarinoErik Iverson

Erich StuderusCarsten Jaeger mbr Thomas Adams Dimitris Rizopoulos mihalicza peter steve Julia Liu Tom Bonen mm745 Qian R Earl Glynn Marc Schwartz galneweinhaw Sarah Vandome Gabriel Rodriguez Marlin Keith Cox Don McKenzie Pieter van der Spek Leandro Marino Aric Gregson Etches Jacob tom soyer ba8 Annette Heisswolf Tyler Smith Jim Lemon Sharon Kuhlmann B goran brostrom Andrew Beckerman Thomas Steiner Alex Reynolds Pooja Jain Ola Caster Andrew McFadden Rebecca Fisher Matthew Pietrzykowski SebastienSamuel Bihorel B Civ USAF AFMC AFRL RVBXI Cable Olivier ETERRADOSSI Peter Dalgaard Tom Bonen Sunil Suchindran Iago Mosqueira stephen bond valeria pedrinaGeorg Ehret Matthias Kohl Murlidharan T Nair Jorge Velez Marek Bartkuhn Ranjan Maitra Einar Arnason Andreas Christoffersen Rebecca Fisher Tom Cohen Edna Bell Juliet Hannah Gary Nelson david f Samuel B Civ USAF AFMC AFRL RVBXI Cable Keith Ponting Most Deepayan Sarkar, hadley wickham, Duncan Murdoch, Gabor Grothendieck, central Sundar Dorai Raj, Thierry ONKELINX hadley wickham, hadley wickham persons baptiste auguie Greg Snow

Duncan Murdoch

Greg Snow legend ggplot hadley wickhamThierry ONKELINX

Deepayan Sarkar boxplot

lattice Gabor Grothendieck Sundar Dorai Raj baptiste auguie Results: Interest maps

Philippe Grosjeaneditor binomial Ben Bolker

cmd John Fox

tom soyer

cross

vectors request simple reshapeprocessing symbols search based Muhammad Azam anova average manipulation loops count boxplot means ggplot2 level ggplot legend frameslists box position mean Sherri Heck gui standard histogram graphics grid adding Peter Dalgaard test max unique John Kane Jorge Velez variables matrix loopmissingcreate hadley wickham cor subset color change columns bar bars range elements dataframe labels select David Winsemiuselement Charilaos Skiadas graphs Henrique Dallazuannatapply behaviour sum value frame barplot sig integer variable lines argumentsJim Lemon normal sub axis colors names row vectorjim holtmanlevels data character list vec building panel column build warning Ted Harding tablename print values lattice length question label aggregate draw call message Deepayan Sarkar string apply using key random help plots symbol rows calculate time plot save limit sequence factor xyplot function Duncan Murdochaxes replace multiple par line numeric functions bug tables set program split file code run packages specificGabortitle Grothendieck rgl script chart csv format graph argument multi output getting esmail bonakdarian matching source Greg Snow summary package curve convert class extract error running expressions correlation formula index result text Uwe Ligges type nls strings date map regular object sample expression zoo read lapply dates matrices plotting install Daniel Nordlund series reading sets linear Brian Ripley add bit errors check Wensui Liu results graphic mac setting analysis objects glm factorsimage step charactersdistribution window method size installing log density files array memory loading write windowsload Eik Vettorazzi issue pdf library fit efficient import device predict versionsystem Frank E Harrell regression Bert Gunter

logistic

model

Erik Iverson mixed paste Douglas Bates lmer models

equation lme Ravi Varadhan Andrew Robinson optim equivalent

empty statement Henrik Bengtsson Wacek Kusnierczyk programming command Rolf Turner word Kingsford Jonescreating generate Results: Communication bottlenecks

tom soyer Philippe Grosjean

Daniel Nordlund Rolf Turner Erik Iverson

Wacek Kusnierczyk

Muhammad Azam Wensui Liu Ted Harding Ben Bolker Kingsford Jones

Henrik Bengtsson

Charilaos Skiadas

Eik Vettorazzi

Peter Dalgaard

John Fox

Jorge Velez David Winsemius esmail bonakdarian John Kane jim holtman

Henrique DallazuannaGabor Grothendieck Uwe Ligges Ravi Varadhan Brian Ripley hadley wickham Duncan Murdoch

Jim LemonDeepayan Sarkar Andrew Robinson Greg Snow Frank E Harrell Douglas Bates Sherri Heck

Bert Gunter Results: Communication bottlenecks

Good. Can be improved.

D

B A C Thank you!

Packages: sna: Carter T. Butts (2008). Social Network Analysis with sna. Journal of Statistical Software 24/6. tm: I. Feinerer, K. Hornik, and D. Meyer (2008). Text Mining Infrastructure in R. Journal of Statistical Software 25/5. References: C. Bird, A. Gourley, P. Devanbu, M. Gertz, and A. Swaminathan. Mining email social networks. In Proceedings of the 2006 international workshop on Mining software repositories. ACM, New York, 2006. Contact: [email protected], www.angela-bohn.de