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DataPhilly August 2013 - Data Science with R

Hey Everyone,

Our August meetup will be focusing on R and related technologies.


6:30 PM - 7:00 PM - Food, Networking, and a word from our sponsor

7:00 PM - 7:30 PM - RStudio - A Tool for Reproducible Research, by Oliver Will

7:30 PM - 8:00 PM - Visualizing Census Tables, by Richard M Heiberger

8:00 PM - 8:30 PM - Lightning Talks

8:30 PM - Leave for Nodding Head

More Details:

RStudio as a Tool for Reproducible Research, by Oliver Will


I often use R at my job. Now I always use it through the RStudio IDE (Integrated Development Environment). I will introduce RStudio and its features in this talk. RStudio was designed to integrate with tools that enable reproducible research, unlike generic IDEs such as Eclipse that were designed to manage large and complex program builds. I'll cover managing your R Scripts with Git for version control and making html reports with Markdown and knitr through RStudio. As time permits, I might show how to connect to an R instance on Amazon Web Services. Finally, one major feature RStudio lacks is a debugger, and I might address that as well.


Oliver is a Senior Manager at IMS Health in Plymouth Meeting. He has a PhD in Applied Mathematics from the University of Southern California. (Go Matt Barkley!) He has taught statistics at colleges and has worked as a statistician at consulting and market research firms for the past 10 years. Once, he contributed a package to Bioconductor, which no one downloaded and is no longer there.

Visualizing Census Tables, by Richard M. Heiberger


The U.S. Census Bureau traditionally summarizes data by cross-tabulated tables. Tables contain a lot of useful information. Tabular structure hides complex relationships. I have been working with a group to design graphics that communicate information to the user better than tables. We illustrate with several sets of Census tables along with our recommended graphs.

One of the graphical forms we use is the diverging stacked bar chart. This graphical technique is appropriate for rating scales, such as Likert scales, which are very common in marketing research, customer satisfaction studies and other fields. Likert scales consist of choices from the sequence: "Strongly Disagree" < "Disagree" < "No Opinion" < "Agree" < "Strongly Agree". I will discuss implementation of an R function for diverging stacked bar charts. I will show a wide set of applications for this technique, including several applications with Census data.


I have been an R and S-Plus user since 1988. I am Professor of Statistics Emeritus at Temple University and teach the Graduate Statistical Computing course. My current consulting practice focuses on designing easy-to-read graphics for complex data situations.

Meetup Location Details

We'll be meeting on the 16th floor. You'll need to sign in at the front desk. See you there!

Directions to Nodding Head

Head South down 15th St (past City Hall)

Walk 4 blocks, turn right onto Sansom St

Nodding Head is on your left (230 ft)

Join or login to comment.

  • Richard H.

    I will be teaching the Statistical Computing course at Temple University this semester.
    This is a second-year graduate course, Statistics 8121, meeting Wednesday 5:30PM-8:00PM, starting next week Aug 28.

    Use of computers in the solution of statistical problems. Topics include: floating point architecture, random number generation, design of statistical software, computational linear algebra, numerical integration, optimization methods.

    2 · August 21, 2013

    • Richard H.

      3a. statconn and RExcel are not open software. Therefore they are no longer hosted at CRAN.
      3b. Make an appointment to come to my office and I will be happy to autograph the book.

      August 21, 2013

    • Jane E.

      Please let us know if you ever decide to offer a version of your course on or other MOOC.

      August 22, 2013

  • Oliver

    Is there any advice about parking at the Municipal Services Building? I know there is usually street parking north of JFK. Also, I'll be doing final touches on my presentation during lunch so I will post it somewhere after my presentation.

    August 20, 2013

    • Rajesh S.

      Oliver, I very much enjoyed your presentation.

      August 21, 2013

  • john A.

    Lots of good information about RStudio & about how to design graphs.

    August 21, 2013

  • Chandra Mohan B.

    Good to know about RStudio.
    US Census presentation was nice.
    Good to see people around.

    Thanks Mike for organizing this!

    August 21, 2013

  • Jesse

    Learned a few new things, nice to see everyone

    August 20, 2013

  • Quinsulon, P.

    1st presentation was a bit too unorganized, but "slightly" informative about the Rstudio IDE. 2nd one was highly informative and impactful.

    August 20, 2013

  • Jason S.

    First time at DataPhilly for me. Thanks for the interesting talks.

    August 20, 2013

  • Chandra Mohan B.

    Looking forward to it.

    August 18, 2013

  • John G.

    Hello all, I wanted to see if anyone in DataPhilly has any projects that could use another analyst. I have a bit of spare time and if possible, I'd like to spend it helping and learning within the local data community. Thanks

    August 14, 2013

  • A former member
    A former member

    Some educational resources:

    August 12, 2013

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