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October Meetup: Emacs and randomForest

We had a great turn out at the last meeting, thanks again to Glenn at the San Diego Super Computer Center for presenting. 

Timothy T Lu will be giving us a demo on using emacs org-mode with org-babel to record and execute R commands. He also plans to showcase some literate programming and reproducible research uses.

I'll be going over a clean and simple implementation of randomForest for classification and importance attribution and visualizations in a business application (great for beginners)

The group can catch up and socialize from 6:30 pm to 7:00 pm and we'll kick off the talks at 7:00pm. I'll post the slides and code on github after.

Please answer the RSVP questions as they will help Tim and I tailor our talks.


Kevin Davenport

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  • AP

    Team, I will likely start working on a deliverable for a client that will be built initially as an R package using S3. I've never done this before, and though I've read the documentation I want it to be as tight and professional as possible. Anyone out there have an hour to sit down with me and go through some best practices early this coming week? If we meet up over a meal or drinks the tab's on me. If the intrinsic reward of teaching a fellow R user + making a business contact isn't enough I'm also happy to discuss compensation for your time. Any takers? Kevin, I apologize if this post violates meetup/R User Group terms--still a newbie out here.


    October 18, 2013

    • AP


      October 18, 2013

    • AP

      right on, thanks. Just posted to the message board.

      October 18, 2013

  • A former member
    A former member

    Kevin, Nice job last nite. I was wondering if you or someone else could show the code with the suggested improvement to speed up the processing? I think the suggestion was to set y as the response and x as a matrix and perform the Random Forest on the matrix vs a datatable.


    1 · October 11, 2013

    • Agustin C.

      Kevin, I read the efficiencies of the package but have not yet installed/used it for my own work. After reading your comments I tried to install it, but was also unsuccessful. As in your case, I tried to download the zip file. After getting several errors I also tried using the devtools function:
      ## if 'devtools' not installed

      October 13, 2013

    • AP

      at least i'm not the only one having problems.... i'll post my question to that guy's blog. wanted to get a sanity check first.

      October 14, 2013

  • Kevin D.

    It was great seeing all of you last night. I learned a lot of helpful things! Code and slides from last nights talk are here:

    1 · October 11, 2013

  • A former member
    A former member

    Excellent MeetUp - Thank you so much for organizing!!!

    1 · October 10, 2013

  • Syrus


    1 · October 10, 2013

  • A former member
    A former member

    I'm new to San Diego and have been learning R.

    1 · September 26, 2013

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