August 18, 2010 5:45 PM - 41 attended

August SURF Meeting : "The Power of Graphics in R" with Sean Carmody

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In addition to its statistical computing prowess, R is one of the most sophisticated and flexible tools around for visualizing quantitative data. It can produce a wide variety of chart types, including scatter plots, box plots, dot plots, mosaic plots, 3D charts and more. Tweaking chart settings and adding customized annotations is a breeze and the charts can readily be output to a range of formats including images (jpeg or png), PDF and metafile formats.

Topics covered in this talk include:

* Getting started with graphing in R
* The basic charting types available
* Customising charts (labels, axes, colour, annotations and more)
* Managing different output formats
* A look at the more advanced charting packages: lattice and ggplot2

Anyone who ever has a need to visualize their data, whether simply for exploration or for producing slick graphics for reports and presentations can benefit from learning to use R's graphics features. The material presented here will get you well on your way. If you have ever been frustrated when trying to get charts in Excel to behave themselves, you will never look back once you switch to R.

Sean Carmody is a mathematician by training and spent most of his working life in the financial markets, working for or consulting to banks, brokers and fund managers. He has used R in a wide range of applications including credit analysis, developing bond investment strategies and operational risk modelling. Sean is also a little obsessed with data visualization, a topic he often turns to on his blog Stubborn Mule (http://www.stubbornmu.... Needless to say virtually all of the charts on the blog have been produced using R.

Meeting from 5:45pm for a 6pm Talk.

We're made a booking for dinner at a nearby pub and it would be great to see you there. Space is limited, so RSVP seperately to the 7:30pm dinner event to confirm your place.

  • Louise Lor
    Louise Lor

    Members skyping in from out of town are most welcome.
    Just submit a commment to let us know when you RSVP.
    This meeting we'll have members skyping in from Canberra & Melbourne.

    Posted August 10, 2010 at 11:37 AM
  • Sean Carmody
    Sean Carmody

    I'll be posting the slides for the talk after the presentation.

    Posted August 17, 2010 at 4:05 PM
  • Nick Wong
    Nick Wong

    so what are the skype in details for this talk?

    Posted August 18, 2010 at 3:30 PM
  • Simon Rumble
    Simon Rumble

    For future reference, there are much better mechanisms to broadcast meetings than Skype. justin.tv is one example I know of, but I'm sure there's loads of others.

    Posted August 19, 2010 at 9:35 AM
  • Sean Carmody
    Sean Carmody

    I have uploaded the presentation here: http://www.meetup.com/R-Users-Sydney/files/

    I have also corrected a typo: in the slide on the Tufte version of a box and whisker plot, the "par" parameter should read "pars". Apologies to anyone who tried that!

    Posted August 19, 2010 at 9:58 AM
  • David John Parry
    David John Parry

    Great night last night! I'm pretty excited about getting further into R now. Thanks to the organisers.

    Posted August 19, 2010 at 10:13 AM
  • Sean Carmody
    Sean Carmody

    David: I can't believe I didn't spot you in the crowd. Such a striking shade of blue!

    Posted August 19, 2010 at 10:25 AM
  • Jeromy Anglim
    Jeromy Anglim

    @Sean Great talk. Thanks for sharing your slides. It was a great talk.

    @Simon Good point. The fact that Skype can't broadcast a webcam or screen capture to multiple viewers is a big failing.

    Posted August 19, 2010 at 10:46 AM
  • Sean Carmody
    Sean Carmody

    Thanks Jeromy!

    Posted August 20, 2010 at 4:34 PM
  • Sean Carmody
    Sean Carmody

    Re GEO data in R: http://www.meetup.com/R-Users-Sydney/messages/boards/thre...

    Posted August 22, 2010 at 10:51 AM
  • Sean Carmody
    Sean Carmody

    I was asked about Protovis in the Q&A after the talk. At the time, I hadn't looked at it. Now I have (http://www.stubbornmule.net/2010/09/experimenting-with-pr...). For any Wordpress users, I've also written a plugin to make it easier to include Protovis code in your posts and page: http://wordpress.org/extend/plugins/protovis-loader/

    Posted September 13, 2010 at 1:33 PM
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41 attended
4.50 4.5010 (10 ratings)

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