Tag Archives: Plyr

What does R do? Bring people together, of course!

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Last night we had a great meet up of the Montreal R User Group. I got things started with a little presentation asking the question “What does R do?” (slides). I made the presentation using Montreal R User Group member Ramnath Vaidyanathan‘s Slidify package. Slidify allows you to generate rather handsome HTML5 slides directly using R markdown.

We were then treated to a great workshop by Etienne Low-Decarie. He gave us a fly over of some of the most powerful R packages for wrangling data, namely plyr, reshape and ggplot.

Here are Etienne’s slides.

You can also follow along with the code posted here.

We met a lot of people who are doing very cool things using R. I’m looking forward to our next meetup!

I’m no shutterbug – drop me a note if you came and have any better pictures.

We had clementines!

Also, thanks to Notman House for hosting us. The haunted house feeling wasn’t enough to scare off this hardy group of data geeks.

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Montreal R User Group meetup Nov. 14th

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After a bit of a summer lull, the Montreal R User Group is meeting up again! We’re trying out a new venue this time. Notman House is the home of the web in Montreal. They hold hackathons and other tech user group meetups, and they are all around great people in an all around great space in downtown Montreal.

Our meetup will feature R super-user Etienne Low-Decarie, who will give a walk through of some of the most powerful packages in R, many of which were built by rstats rock star Hadley Wickham.

I will also kick off the meetup with a short session on how R is revolutionizing data science in academia, journalism, business and beyond.

  • November 14th, 7pm at 51 Sherbrooke W.
  • BYOL&D (Bring Your Own Laptop & Data)

Don’t forget to RSVP. Hope to see you there!

Montreal R workshop: Plyr, reshape and other data manipulation goodies

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March 12, 2012 14h-16h N4/17 Stewart Biology Building, McGill University

Étienne Low-Decarie, McGill University


This workshop is organized by the BGSA and is free of charge (!), but space is limited. Register early to ensure your spot!

From Étienne:

  • Ever want to split your data according to factors, apply a function on each part and combine all the results into a consistent output?
  • Want a table of the slope for each year of your sampling data?
  • Want a plot for each level of your treatment?
  • Want to transform your data (e.g.: standardization)?
  • And want the high speed benefits of parallelization to boot?!

If yes, come out the the workshop!