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Network Text Analysis of R 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: Number of mails: Avg. degree: Diameter: 5326 41457 4.4 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 Results: I I I “Interest maps” of R users 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: <[email protected]> Author A: ''Hallo, I have a question.'' Author B Author B: ''This is the answer.'' Author D Author C Author C: ''This, too.'' Author D: ''And this.'' Author D: ''And this.'' Author A: ''Thank you.'' I Find aliases: knoblauch at lyon.inserm.fr (knoblauch) knoblauch at lyon.inserm.fr (Ken Knoblauch) ken.knoblauch at inserm.fr (Kenneth Knoblauch) ken.knoblauch at inserm.fr (Ken Knoblauch) Levensthein Distance: agrep(base) Author A 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)): time building device rcmdr usage configure vegan loess labels transformation urgent posixlt describe 11497 13231 git enable hist merging strings summary logit date sequences 8859 defining recoding correction simulation nnet lapply adding measures maximum boxplot ascii mac effect double programming contrasts information timeseries pairwise extracting table null names finite skip creation exporting interaction matrices index aggregate document recursive model statements text set suppressing heatmap maps bit editor bars ubuntu level proportional bad rjava segments axis increase scales devices avoiding median calculation svnversion messages meaning frames history fast mailing postscript fails language likelihood deleting par cmd option subsetting write help concatenate retrieving convert rmysql rownames gradient arrays generating reading naming manipulate fisher effects transforming list decomposition grep applied following survey handle matlab indexing gaussian query odfweave element parsing file statistic optimize diff prediction smoothing factorial kernel power repeated combinations behavioural fortran atomic coefficient estimate name image include running alternative vectors scatterplot3d access documentation funtion bounded custom rgui settings third fortran recursive print building base namespaces generation qplot R-help parameter importing header 13711 tkcanvas linking symbolic optimisation posixt smooth skeleton passed cat reading support breaks machine external handle 11192 dimension dotcall infinite programs 12540 improvement engine jpeg posixct environment 12770 13504 configured nlminb including 13671 binomial rrors unique lookup buglet behaviour aliasing rcmdr status openmpi mess database unserialize R-devel license index cook distributing format solaris buggy level storage rscproxy quartz mean multiple heatmap rowsums rimage gsoc acf revision chi splinefun unicode getting ubuntu proc internal length maintainer colour 13570 unlist biobase option reset defaultfont winxp anova effect 2846 missing description dislikes wrapper addcomment 11036 couldn 11054 perils gctorture compiled exec close clobbered switch handling sample fault 2009 tarballs despite bad size embeding safe irrelevant uninstall models produced compiler fwd parallelr aix download class request means bin rin net vista directories gpl gregexpr numeric tests xlim pass checking closed unsorted segmentation 11491 png overriding routine optional local encoding writing gamma faq test locating symbols performance caused column levels log10 randomly mistakenly s4method loop alternative files component proper book match raw svn clarification minimal stringsasfactors assigning idea speed poly cocoa fitted scatter experiments methods closing 13494 link 13283 start closure exporting preserved plots filter plot sig style options usr write deal crashy text 12112 printed conform significant colsums 13515 seed freebsd embed shortpathname patch failure levelplot distances classification standard graphics entries crosstable reference dlls 12520 relative 13686 survfit zlib builder lapack formula conf sprintf distortion memory hook broken search interactive simple programming cairo address errors defaults 13454 install 10945 compiling creates bugs dropping enhancement dos package par rows ylim depending readable limits tarball upside graphics suppress nls cdf influences loaded 13391 quality win result platform trueversion dir returns codes contain changes 9682 rhel example binary literate 11470 ops eval postinstall info file packages invalid suggested 11537 dynload correct vector list suggestion cross base schemes range line variables rng command car 13538 directory view simulate preserve blas method heron unexpected unsigned cran polr debugger frame applied rbuildignore application strsignif postscript libs interval contrast wide log replacing lines simulating empty sub inconsistency rodbc 11399 arith decreasing characters vectorframe available running sometimes ignored position huge rank cbind fill eval runs makefile centos assign download handling pdf logical pca factor gdb installer faster based multivariate distribution chart guide slot return catch particulars digits rgl native ability row random matching costs stated auto intentionally dump 000 inaccurate str filter platforms derivs tiff constructor logical holtwinters assignment false gram wishlist chol2inv device debian event overflow setdiff don aborting maximum dll 10600 automatic forge rtools28 rprofile strange warnings 10565 iconv save max clustering issue workspace menu regresion searching sapply license weird assigning output legend friendly multiplication tutorial categorical vista efficiency row looping request principal return ignore user breaks equivalent randomly suggestions density squares combine ticks individual duplicates day graph system spss key quality numeric facet processing graphs col passing drop howto suggestion means hist automatically 13646 pdf parameter roracle exits examples issues comments transperancy links 10953 colors filtering figure ifelse output options manual response html ancova name loses weighted ann modeling graphic curve objects quick method plots duplicate tabulation free swig query 10666 analyzer loops import page 8192 actions subscripting c99 bug data image matrix 13161 mpi operator default vignettes solve exponential shape analysis select speed outside matching saving estimating significance installing functions date app testing underscore adds nan compilation selection rterm col zoo differences installation math2 dimnames limit recursions incorrect regular behavior build box auto survival overlapping numerical covariance labeling repositories qqnorm lines patched incorrectly amd64 acf missing limits randomforest else binary measure fixed classes replace ols downloading r45591 capturing empty pass diagram count initialize stats variable xyplot start formula solve dates dendrogram using plot times fitted training square efficient marks pre cross normal page factors confusion scope interpretation counting finding array tinn version multi applying study significant removing fwd pie tick neural wise axes estimation control integration style functional installed operator loading color executing labelling resolution poisson generate newbie expand odp sem multidimensional rep similar win connection nlme call course cumulative input 48590 figure via bit 13699 loosing gsub source 13487 linkingto foo 12931 development scripts segfaults weird writting prod versions changed tcltk locate avoid warning x11 using 11334 rpart boxplot faster roxygen recommended troubles scaling remove lrm conversion lists install zero site sas differences questions create fix arithmetic variable datapackagewindows error google algorithm rbind previous correlated process thanks union impossible sub range definition multi rushing frequency division stata java quote gamma please source column converting bottom specification tapply current signal lapply news messages sessioninfo user 13631 additional messing jri connections comparison offset convert 2003 dependency defining bounds progress vectors set string extrapolating valgrind giv yscrollcommand release names path gfortran antialias availability snapshot sort upgrading creation constraint usage quote dput try specifying rmpi histogram related regex created colours save displaying values panels 100th changing colour biplot improving separate kde root support draw accuracy environment drawing sig regular html causes 11493 descriptive 13284 spaces foreign registry time persists median related matplot quantile parallel java 11034 preferred clash object action primitive extending constructing equal proposed rjava macports noncentrality paste top installed difference advice smooth little argument permutations bwplot statement csv replicate integrate aov dataframes unequal interpreting containing sink frequencies integer tests concatenating form mean value plotting compare beginner raster svm distance internal limit trend bivariate step rgl bar custom xlim txt print exclude failed graphical spam unclassified selection program probability expected fatal coords confidence key listing 13551 repository sweave packages trouble avoid line sets glm rendering calling colnames snow utf spec series unique integers conditionally cons predicting plasma extract defined item please calculation bugfix execution blah dependencies references character feasible xyplot plotting maintained accuracy licensing rsitesearch soc09 getsrclines r44608 frf2 console frames combination update argument rmysql anrpackage cmd undefined extension remove scoping puzzled forest hazard xtable sql regression variance machine errormultiple rbinom read random main splitting window modelling via perl rodbc solving plotrix specific types importance datasets operation warning panel difficult statistical fitting word constraints link comments substitute check library solved forecasting cor maptools instead solaris lme questions predict theorem beta positive nonlinear windows integer values tkgraph renaming hash sec local spatial installing odd found run character passing ess linux tree cluster trees truncated chisq results 13620 bizarre wrapping scatter versus interface coordinates specify post dummy png calculating result r2winbugs subject linear map samples compiling figures gnu pairs dataset batch importing common score deviation advanced label sum precision parsing rmath correctly behavior cut 13703 color times mass allocation party objects cycle program display based condition 10776 conditionally timestamp single aka manova namespace dev export identify normal equivalent callcc amount expression overplot dead parser coerce ifelse strings devel adding buffer array title fonts 10746 access touch odd crasher modification bundle incoherent checkout rnorm creating assign obtaining console tcl fedora daily web garch unexpected length create etc symbol columns mixed hoc mfrow barplot vec observations files symbol standard 10635 saveplot stack able 13475 sequence 10801 dates fail input lib64 nas nulls generate mkl type shouldn typoembedded calls adj child surprising seq merge spss iterator changelog issue 10592 longitudinal aic crash week stuff fourier subsets getting clusters summer controlling covariates relative 2009 message split gam alias externalptr trellis invalid vertical spline university lower conversion arguments 13533 conflict crashes binding selected require optimization xml expressions weighted search layout 2008 trellis lme4 parallel identical simple grid regressions 11281 unknown feature warnings rows lmer extensions locale items compile 11499 sexp windialogstring standalone collection core parse debian survreg pages x11 decimal value help calling args streams threads criteria basic intervals x86 setting script sweave modifying creating display interactive title binomial stepaic makevars optim formulae computer odesolve attribute mandatory api max merging snow formatting rank fft operations export mle proportions server load setting convergence scale parametric iso parameters rfc 12016 thread permanent allocate topic command question suggestions generated produce failure letter jri mgcv osx kruskal task elements lattice ggplot2 manipulating subscript changes legality cat starting constraint excel popular insert collection model updating dim split predict folder blocking fools inheritance clean duplication builds copy chisq demo subsetting reference addition library util forcing descriptor elements panel gui intel field sapply miktex overlap focus 11495 extract var counting drop1 returning dup interrupting 11231 browser unchange treatment itemize strip combining horizontal dimensional barchart regarding pkgs bug updating code issues passed percentages roc delete overlay single nesting testing weibull scatterplot robust fits block central leak recent defined printing message beta ignores window iqr lend autocompletion report variables char loops downloading question matrix hmisc match stacked duplicated analyzing apply class validation errors calculate tcltk intercept condition javareconf call accessing label read cmp won found rdata dimension factor popup scope serialize lexical assignment residual dimensions manipulations shapiro crashes functions iterations counts sensitivity understanding existing stack product sens singular stepwise wrong osx optimization vignette 12636 13361 generic 10589 terms sampling paste function mapping cox characters wrong overdispersion manipulation transfer compilation sslogis endings according generics xpd matrices expressions residuals space glm numerical etc unix parent x86 readline changing textconnection overwriting speedup rcmd esc loading detectable dispatch 10744 weights readbin congiure rout slow logistic generalized wireframe intersection upgrade levels guis tables strange checking arguments chi contingency fit attributes definite solution path computing filled example aggregate environmentsfree bar editor removing negative identifying moving surface build log2 mode igraph persp complex distributions outputs looking digits structures scripts prcomp generic quantile add arima cbind distance doesn locales compilers finding classes directory models minor strategy 13292 conditional reshape zoo external rgui writing discriminant gui strptime fonts axis containing note 2008 embedding reproducible deep callbacks bayesian format inserting latex mishandled efficiently plus false add ggplot sort true abline comparing permutation weights words histograms bootstrap identify storing formatting encoding nls calculations manual hardy attributes dnbinom posting maclibraries outdated whitespace rmpi actual check fails thrown intro grid cpu indexing macintosh sequence curves update behaviour import transferring structure loop cache fitdistr equation nested negative normality unable sgi transform symbols sample unit charts network greek labels pros gsub copy mixture goodness inside optim equations rprofile risks strsplit estimates producing pattern including sun basename correction code function clipping upper broke system perl choose failing specifying section v10 called xtfrm constrained finance printing comparisons components rpart config simulate plm background plotmath incomplete definevar available partial feature article doc shlib garbage executable alpha 10571 crash zip inconsistency test dealing arima 10000 zero resuts filename violation harddisk dependent script syntax default 11527 produces concerning change exe utf 1000 cmyk join size unable gls merge cran trying font polynomial emacs doesn correct average xls circular don reduction elegant ebimage inf table 12742 roadmap wish pnorm google null multinomial jpeg memory object coefficients gee paired probabilities contour quotes installation getclass interface calculating trivial 11511 scores spearman computation conflicts linux macos effects recursion double computing inverse type censored legend seq margins family design unix space res boxplots original compute coxph competing sorting comparison summary compile fitting documentation left statistics mirror var automatic methods regions detected segfault results subset dataframe dynamic anova days nas automatically selecting accessing correlation posixct ratio difftime sign string recursively prettyr dll change expression splus docs Word Networks “lattice” francesc montane John Poulsen Thierry ONKELINX Jim Lemon Mike Lawrence Paul Murrell remko duursma Alex Karner Henning Wildhagen Dhruv Sharma Dieter Menne Robbie Heremans Michael Kubovy Judith Flores Paul Boutros Benjamin Tyner Chris Barker John Fox Alex Reynolds Gustaf Rydevik Liakhovitski Mark Coletti David Winsemius Karl Ove Dimitri Hufthammer Gabor Grothendieck Jon Loehrke Alex Thomas Brown Zumbrunn Daniel Ott Naomi Robbins Katell HAMON Raj Thomas Roth Mark Wilkinson Deepayan Sarkar stephen sefick audrey Brian Desany Jim Price Ripley Scott R WaichlerBrian Henrique Rolf Turner Coltrey Mather Steve Friedman Aaron Arvey Andrewjohnclose K Elo John Smith Paul Hiemstra Greg Snow John Kane Sundar Dorai Bert Gunter Stefan Grosse Steven McKinney Douglas Bates Patrick Connolly Levi Waldron Javier PB David Chosid steve Chuckhadley Cleland wickham Bram Kuijper Mark Difford Michael Hopkins Ron BonnerG Draisma Dallazuanna Surai Marianne Promberger Wolfram Fischer Kyle Roberts Andreas Krause Saptarshi Guha Ferry RINNERSeth Heinrich W Bigelow GOUACHE David Weidong Gu Felix Andrews Malte Brockmann baptiste auguie rhelp 20 trevva lost river Richard CottonSkiadas Charilaos jimdare PALMIER Patrick CETE NP INFRA TRF Ryan Hafen Mark Leeds Daniel Kornhauser Joachim Heidemeier Dr Patrick Hausmann Mark Heckmann Richard and Barbara Males Paulo Cardoso ravi Ben Bolker Dan Kortschak Troels Ring Gavin Simpson William Deese Christos Argyropoulos Dimitris Rizopoulos Qian R Don McKenzie Leandro Marino Pieter van der Spek Tyler Smith Andrew Beckerman Ola Caster Rebecca Fisher Andrew McFadden Sebastien Bihorel Samuel B Civ USAF AFMC AFRL RVBXI Cable Iago Mosqueira Ranjan Maitra Einar Arnason Tom Cohen Juliet Hannah Gary Nelson Tom Bonen Word Networks “ggplot” Tena SakaiSorn Norng haettulegur Ivan Alves Mikhail Spivakov btcruiser Dieter Menne Ian Fiske Tom Cohen Bernd Weiss Chris Friedl Zeljko Vrba David Hajage stephen sefick Thierry ONKELINX P E David Thompson Wayne F Adam Marsh Uwe Ligges John Kane Ptit Bleu Gabor Grothendieck baptiste Murray Rust auguie Paul Emberson ba8 Dave Domenico Vistocco Felipe Carrillo Matias Gallego Liberman Albin Blaschka Spinu Vitalie Rainer M Krug Mike Lawrence Megh Dal Josep Maria Campanera Alsina simeon duckworth Paul Murrell Pedro de Barros Michael Frumin Tribo Laboy guillaume chaumet Henning Wildhagen hadley wickham Ronggui Huang Harsh Felix Andrews Sebastian Weber Erich Studerus Ingo Michaelis Marianne Promberger Tylere Couture Engelmann Christopher DavidBernd Desjardins MUHC Research Martin Rittner Ista Zahn Etches Jacob Bernd Ebersberger Michael Friendly Brian Ripley Avram Aelony Jason Law Carsten Jaeger Xavier Chardon levyofi jiho Williams Scott Elena SchulzTom Bonen Ben Bolker Jacob Etches Thorsten Vogel Juliet Hannah mihalicza peter Eric Jason Rupert Ian Fellows steve galneweinhaw Aric Gregson Sunil Suchindran stephen bond Andreas Christoffersen david f Edna Bell Word Networks “legend” Yasir Kaheil PALMIER Patrick CETE NP INFRA TRF Felix Andrews Michael Kubovy Tom Cohen Neuer Arkadasch Joachim Heidemeier Dr stephen sefick Peter Flom Levi Waldron Deepayan Sarkar Tomas Lanczos Simon Pickett anisha sinnarkar Tom Snowden Michael Head Wade Wall steve Henrique Dallazuanna Patrick Hausmann Paul Johnson Zeljko Vrba baptiste auguie Dimitri Liakhovitski Peter Dalgaard Lauri Nikkinen Giovanni Petris Luis Ridao Cruz Rodrigo Aluizio Sarah Goslee Jorge Velez ming kung Sherri Heck Steve Murray Gabor Grothendieck Aparna Vemuri Nelson B Villoria Mike Lawrence Mathieu Ribatet kate Brian Ripley Martin Maechler Julien Beguin Felipe Carrillo Mathew Fox Christophe Anne Marie Ternes Genolini Simone Giannerini Duncan Murdoch Markus Gesmann Hans Joerg Bibiko Stanley Ng yk Mark Farnell Tom Boonen John Avram Aelony Dieter Menne Greg Snow Agus Susanto rhelp 20 trevva Uwe Ligges Pedro de Barros Gavin Simpson John KaneGeorg Otto Bernardo Rangel Tura Thierry ONKELINX Christophe Dutang Lavan yvo David Winsemius Paul Emberson jimdare hadley wickham Bernd Engelmann Alexandre Aguiar mbr Carsten Jaeger Erich Studerus Julia Liu Tom Bonen Earl Glynn Marc Schwartz Sarah Vandome Etches Jacob ba8 tom soyer Jim Lemon Thomas Steiner Matthew Pietrzykowski Olivier ETERRADOSSI Georg Ehret valeria pedrina Rebecca Fisher Samuel B Civ USAF AFMC AFRL RVBXI Cable Word Networks “boxplot” Coey Minear Bill Venables Antje Mike Lawrence Amit Patel Felipe Carrillo Ben Bolker Phil taylor Petr Pikal Michael Kubovy Richard Yanicky rich Yihui Xie Georg Ehret Zeljko Vrba Brian Ripley Stephan Kolassa Jim Lemon Frank E Harrell cathelf Megan J Bellamy Adaikalavan Ramasamy Sebastian Merz stephen sefickMarc Schwartz Sebastian Luque S Ellison Cornelis de Gier Petter Hedberg Kenneth Takagi Samor Gandhi Dieter Menne John Kane Daniela Garavaglia Birgit Lemcke Dimitri Liakhovitski Gabor Grothendieck Marcin Kozak Uwe Ligges Andreas Christoffersen Tom Cohen Coen van Hasselt Chad Junkermeier Greg Snow HBaize James Lenihan Henrique Dallazuanna Paul Adams Sherri Heck hadley wickham Peter Alspach jim holtman Tubin Corinna Schmitt steve Chuck Cleland Bernardo Rangel Tura Aldi Kraja Marc Bernard Thierry ONKELINX Rajasekaramya Deepayan Sarkar Chris Friedl David Winsemius Karin Lagesen Ken Knoblauch David Hewitt Phillip Porter Kenneth Roy Cabrera Torres Giulio Di Giovanni Erik Iverson Leandro Marino Thomas Adams mihalicza peter mm745 Gabriel Rodriguez Marlin Keith Cox Sharon Kuhlmann B Annette Heisswolf goran brostrom Pooja Jain Alex Reynolds Peter Dalgaard Matthias Kohl Murlidharan T Nair Jorge Velez Marek Bartkuhn Keith Ponting Centrality Measures Notion lattice ggplot francesc montane John Poulsen Thierry ONKELINX Tena SakaiSorn haettulegur Norng legend Ivan Alves boxplot Coey Minear Yasir Kaheil Bill Venables PALMIER Patrick CETE NP INFRA TRF Antje Felix Andrews Mikhail Spivakov btcruiser Gustaf Rydevik Mark Coletti David Brian Desany Jim Price K Elo John Smith Ripley Scott R WaichlerBrian Henrique Harsh Levi Javier PB Waldron David Chosid Felix Andrews Marianne Promberger Surai Tylere Couture Marianne Promberger Steve Murray Thorsten Vogel Juliet Ryan Hafen Hannah Tom Boonen John Eric Gavin Simpson John KaneGeorg Otto Peter Alspach Marc Bernard Rajasekaramya Deepayan Sarkar Chris Friedl David Winsemius Karin Lagesen Lavan yvo Paul Emberson Ken Knoblauch David Hewitt Phillip Porter Kenneth Roy Cabrera Torres jimdare hadley wickham Tubin Corinna Schmitt steve Chuck Cleland Thierry ONKELINX Bernardo Rangel Tura Thierry ONKELINX Christophe Dutang Giulio Di Giovanni Bernd Engelmann Alexandre Aguiar Dimitris Rizopoulos Carsten Erich Studerus steve Qian R Thomas Adams Julia Liu Tom Bonen Marc Schwartz Sarah Vandome Etches Jacob Aric Gregson ba8 Tyler Smith Erik Iverson Leandro Marino mbr Jaeger Earl Glynn galneweinhaw Leandro Marino Sherri Heck hadley wickham jim holtman Bernardo Rangel Tura William Deese Pieter van der Spek Greg Snow Henrique Dallazuanna Paul Adams Avram Aelony Dieter Menne Uwe Ligges Pedro de Barros David Winsemius Jason Rupert Ian Fellows Don McKenzie Andreas Christoffersen Chad Junkermeier HBaize James Lenihan Stanley Ng rhelp 20 trevva Aldi Kraja Ben Bolker Dan Kortschak Christos Argyropoulos Cornelis de Gier Tom Cohen Coen van Hasselt Hans Joerg Bibiko mihalicza peter Joachim Heidemeier Dr Patrick Hausmann ravi Troels Ring Gavin Simpson Felipe Carrillo Mathew Fox Simone Giannerini Greg Snow Agus Susanto Elena SchulzTom Bonen Marcin Kozak Uwe Ligges Duncan Murdoch yk Mark Farnell jiho Williams Scott cathelf Adaikalavan Ramasamy Samor Gandhi Dieter Menne John Kane Daniela Garavaglia Birgit Lemcke Dimitri Liakhovitski Gabor Grothendieck Jacob Etches Mark Leeds Daniel Kornhauser levyofi Mike Lawrence Mathieu Ribatet Markus Gesmann Bernd Ebersberger Jason Law Carsten Jaeger Xavier Chardon Ben Bolker Kenneth Takagi Brian Ripley Martin Maechler Christophe Anne Marie Ternes Genolini Etches Jacob Michael Friendly Brian Ripley Avram Aelony rhelp 20 trevva lost river PALMIER Patrick CETE NP INFRA TRF Aparna Vemuri Nelson B Villoria kate Martin Rittner Ista Zahn Weidong Gu Felix Andrews Yihui Xie Zeljko Vrba S Ellison Gabor Grothendieck Weber stephen sefickMarc Schwartz Sebastian Luque Petter Hedberg Engelmann Christopher DavidBernd Desjardins MUHC Research Wolfram Fischer baptiste auguie Mark Heckmann Richard and Barbara Males Sebastian Erich Studerus Megan J Bellamy Sebastian Merz Lauri Nikkinen ming kung Julien Beguin Richard CottonSkiadas Charilaos Paulo Cardoso Peter Dalgaard Sarah Goslee Jorge Velez Sherri Heck Ingo Michaelis Andreas Krause Saptarshi Guha Ferry RINNERSeth Heinrich W Bigelow GOUACHE David Malte Brockmann Ridao Cruz Jim Lemon Frank E Harrell Dimitri Liakhovitski Giovanni Petris Luis Rodrigo Aluizio Henning Wildhagen Ronggui Huang Coltrey Mather Steve Friedman steve Chuckhadley Cleland wickham Bram Kuijper Mark Difford Michael Hopkins Ron BonnerG Draisma Dallazuanna Kyle Roberts jimdare simeon duckworth hadley wickham Rolf Turner Aaron Arvey Andrewjohnclose Brian Ripley Stephan Kolassa Zeljko Vrba baptiste auguie Michael Frumin Tribo Laboy guillaume chaumet Mark Wilkinson Georg Ehret steve Henrique Dallazuanna Paul Murrell Pedro de Barros Raj Thomas Roth rich anisha sinnarkar Michael Head Wade Wall Patrick Hausmann Paul Johnson Albin Blaschka Spinu Vitalie Rainer M Krug Mike Lawrence Megh Dal Josep Maria Campanera Alsina Sundar Dorai Bert Gunter Stefan Grosse Richard Yanicky Simon Pickett Tom Snowden Adam Marsh Gabor Grothendieck Bates Petr Pikal Michael Kubovy Tomas Lanczos Zeljko Vrba John Kane baptiste Murray Rust auguie Paul Emberson ba8 Dave Domenico Vistocco Felipe Carrillo Matias Gallego Liberman Deepayan Sarkar stephen sefick audrey Bernd Weiss Chris Friedl David Hajage stephen sefick Thierry ONKELINX P E David Thompson Wayne F Paul Hiemstra Greg Snow John Kane Steven McKinney Douglas Daniel Ott Naomi Robbins Katell HAMON Ben Bolker Phil taylor Deepayan Sarkar Tom Cohen Uwe Ligges Liakhovitski Winsemius Gabor Grothendieck Karl Ove Dimitri Hufthammer Jon Loehrke Alex Thomas Brown Zumbrunn Patrick Connolly Felipe Carrillo Peter Flom Levi Waldron Ian Fiske Ptit Bleu Judith Flores Paul Boutros Benjamin Tyner Fox Alex Reynolds Mike Lawrence Amit Patel Joachim Heidemeier Dr stephen sefick Dieter Menne Mike Lawrence Paul Murrell Alex Karner Henning Wildhagen Dhruv Sharma Dieter Menne Robbie Heremans Chris Barker John Michael Kubovy Tom Cohen Neuer Arkadasch Jim Lemon remko duursma Michael Kubovy mihalicza peter mm745 Gabriel Rodriguez tom soyer Jim Lemon Marlin Keith Cox Sharon Kuhlmann B Annette Heisswolf goran brostrom Andrew Beckerman Ola Caster Thomas Steiner Rebecca Fisher Andrew McFadden Sebastien Bihorel Samuel B Civ USAF AFMC AFRL RVBXI Cable Tom Bonen Iago Mosqueira Most central persons Georg Ehret valeria pedrina Gary Nelson Deepayan Sarkar, Sundar Dorai Raj, baptiste auguie Murlidharan T Nair Jorge Velez Marek Bartkuhn Andreas Christoffersen Juliet Hannah Peter Dalgaard Matthias Kohl Einar Arnason Tom Cohen Pooja Jain Alex Reynolds Matthew Pietrzykowski Olivier ETERRADOSSI Sunil Suchindran stephen bond Ranjan Maitra david f Rebecca Fisher Edna Bell Samuel B Civ USAF AFMC AFRL RVBXI Cable hadley wickham, Thierry ONKELINX Duncan Murdoch, hadley wickham, Greg Snow Duncan Murdoch Greg Snow legend ggplot hadley wickhamThierry ONKELINX Deepayan Sarkar boxplot lattice Sundar Dorai Raj baptiste auguie Gabor Grothendieck Keith Ponting Gabor Grothendieck, hadley wickham Results: Interest maps Philippe Grosjean editor binomial Ben Bolker cmd John Fox tom soyer cross vectors simple based anova loops count level Peter Dalgaard test cor box mean Sherri Heck graphics grid max Jorge Velez range Muhammad Azam legend ggplot frames lists position standard histogram gui request reshape processing search symbols manipulation average means ggplot2 boxplot adding unique John Kane variables hadley wickham loop missingcreate matrix subset columns dataframe bar elements element color labels David Winsemius select Charilaos Skiadas graphs behaviour tapply Henrique Dallazuanna value sum sig length aggregate frame barplot integer variable jim holtman data subrow vector list vec column tablename names character values time arguments Jim Lemon axis building question label help using rows factor multiple normal colors save Ted Harding lattice Deepayan Sarkar key plots limit random xyplot axes line file call message draw functions multi panel build warning plot Duncan Murdoch function par set Gabor Grothendieck specific title chart csv argument matching summary convert class extract expressions formula index result type nls strings regular zoo expression lapply matrices dates series sets add linear lines levels print string apply symbol calculate sequence replace numeric tables split change bars program bug run code packages rgl graph script format output getting source package esmail bonakdarian Greg Snow curve error running correlation Uwe Ligges text map date object sample read plotting install Brian Ripley Daniel Nordlund reading bit errors method loading fit mac analysis objects step files Wensui Liu check graphic results setting glm window factorsimage characters distribution size installing array log density windowsload memory write issue pdf library import predict device versionsystem Eik Vettorazzi efficient Frank E Harrell regression Bert Gunter logistic model Erik Iverson mixed paste Douglas Bates lmer equation lme Ravi Varadhan Andrew Robinson optim equivalent empty Henrik Bengtsson command Rolf Turner word statement Wacek Kusnierczyk programming creating Kingsford Jones generate models Results: Communication bottlenecks tom soyer Philippe Grosjean Daniel Nordlund Rolf Turner Erik Iverson Wacek Kusnierczyk Wensui Liu Muhammad Azam 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 Gabor Grothendieck Henrique Dallazuanna Ravi Varadhan Uwe Ligges Brian Ripley hadley wickham Duncan Murdoch Jim LemonDeepayan Sarkar Greg Snow Frank E Harrell Andrew Robinson Douglas Bates Bert Gunter Sherri Heck Results: Communication bottlenecks Can be improved. Good. 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