Trade Cartograms at UseR! 2010
A bit of shameless self-promotion! I will be presenting my work on trade cartograms at UseR! 2010. I’ll update this with a link to the abstract when it is listed there.
Earlier this year I posted on the use of cartograms to visualize dyadic trade flows.
About UseR!
useR! 2010, the R user conference, will take place at the Gaithersburg, Maryland, USA campus of the National Institute of Standards and Technology (NIST) from 2010-07-21 to 2010-07-23. Pre-conference tutorials will take place on July 20.
The conference is organized by NIST and funded by the R Foundation for Statistical Computing.
Following the successful useR! 2004, useR! 2006, useR! 2007, useR! 2008, and useR! 2009, conferences, the conference is focused on:
- R as the `lingua franca’ of data analysis and statistical computing,
- providing a platform for R users to discuss and exchange ideas how R can be used to do statistical computations, data analysis, visualization and exciting applications in various fields,
- giving an overview of the new features of the rapidly evolving R project.
As for the predecessor conferences, the program consists of two parts:
- invited lectures discussing new R developments and exciting applications of R,
- user-contributed presentations reflecting the wide range of fields in which R is used to analyze data.
A major goal of the useR! conference is to bring users from various fields together and provide a platform for discussion and exchange of ideas: both in the formal framework of presentations as well as in the informal part of the conference in Gaithersburg.
Prior to the conference, on 2010-07-20, there are tutorials offered at the conference site. Each tutorial has a length of 3 hours and takes place either in the morning or afternoon.

Hi-
Do you have R code for making cartograms? I’m looking for something beyond what omegahat offers. I’m savvy with both R and spatial data in general, but would rather not code it from scratch. Any tips would be appreciated.
thanks
Frank
April 28, 2010 at 2:49 pm
Not at present.
I looked into a solutions based on the Gastner-Newman diffusion algorithm about six months back. Newman’s cart software transforms the coordinates but that is the only step. The algorithm has been incorporated into an ESRI script for ArcGIS, and built into a standalone Java program (Scapetoad).
Choros Lab’s Scapetoad http://scapetoad.choros.ch/ is open source and works well.
I’d be interested to hear if you find a cartogram plotting function in R. Thank you,
Ben
Ben Mazzotta
April 29, 2010 at 7:53 am
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December 15, 2010 at 7:07 am
Have you posted any examples of the trade cartograms you proposed? It sounds interesting.
Lars
January 18, 2011 at 11:21 am
Hi Lars, I do have a few on the later slides of this deck. http://www.box.net/shared/5zsurutuo4 Not the most current version of the work.
The original goal of the project was to work out a script that could automate the generation of several thousand of these, so you could really get a sense for what’s going on. Until I can carve out the time (or hire a Javascript programmer) to do it properly, I’ve only got a few dozen completed.
I appreciate the interest! Have a good day.
Ben Mazzotta
January 20, 2011 at 9:10 am