Global GIS Academy - a Worldwide Universities Network consortium to develop research and teaching interests in the geographical information sciences

e-Workshop: Spatial analysis in ‘R’
Winter/Spring 2009

The series used WUN’s Marratech™ desk top collaborative environment and consisted of six workshop sessions that collectively provided a course in the use of R for spatial problems. We started with a general talk on how R helps in teaching and research, followed by its use to compute relatively simple spatial statistics. If you are already skilled in using R, please be patient during these introductions. They were followed by ones on the more advanced use of R for spatial problems, more sophisticated analysis, spatial statistics, advanced visualization and, finally, spatial epidemiology and disease mapping.

Pre-requisites

In each case familiarity with standard computing environments is assumed as is a willingness to work between sessions and familiarity with basic statistical analysis of spatial data. Familiarity with basic concepts of programming is also an advantage, as is an up-to-date knowledge of methods of spatial statistical analysis. To replay the seminars for which we have recordings, you will need to have downloaded, installed, and experimented with the Marratech™ client used.

Objectives

After completing the workshop, you will be able to

  • Drive basic statistical analysis using R commands;
  • Use contributed R packages to run more complex spatial analyses;
  • Visualize geographic data using appropriate tools;
  • Develop R code to perform your own analysis as necessary.

There is a guide to using the Marratech™ environment at: http://www.wun.ac.uk/ggisa/documents/pdfs/Seminar_user_guide.pdf

Timings & Schedule

The sessions were every two weeks as

Jan 14th

Rich Harris (Bristol)
Why R? Using R for geographical research

Richard deals with R basics, where to get R, CRAN and how R can be used in spatial analysis. He illustrates this with examples from work on modeling websites and also some joint work on running 'grid-enabled' GWR.

Download presentation (1.2mB pdf)
Download questions log (18.9kB pdf)
Download demonstration (1kB TXT)
Download video and playback instructions (40Mb ZIP)

Jan 28th

Nick Tate (Leicester)
Basic statistics in R

Nick shows how the R console can be used to develop some basic spatial statistics.

Download presentation (1.2mB pdf)
Download questions log (17kB pdf)
Download video and playback instructions (96MB ZIP)

Feb 11th

Roger Bivand (Bergen)
Handling spatial data in R

Roger develops things further, outlining his work and that of others in developing the R environment with spatial problems in mind.

Download presentation (745kB pdf)
Download questions log (12Kb pdf)
Code and data for download (397kB ZIP)
Download video and playback instructions (72mB ZIP)

Feb 25th

Edzer Pebesma (Munster)
Spatial statistical analysis in R

Edzer showshow R is used in a series of spatial analyses, dealing with point ‘event’ data, lattices, geostatistics for surfaces and in space-time modelling.

Download presentation (613Kb pdf)
Download questions log (14Kb pdf)
Download video and playback instructions (82MB ZIP)

March 11th

Chris Brunsdon (Leicester)
Visualization in R and OpenGL

Chris demonstrates that there are a number of graphics engines that R will talk to as well as the standard ones. Each package is useful for different reasons – the standard graphic engines are designed to create (almost) static graphics of publication quality. The other interfaces allow R to create more exploratory, interactive graphical representations.

Download presentation (1.3Mb pdf)
Download resources (98.7kB ZIP)
Download resources text (23.5kB doc)
Download questions log (not yet available)
Download video and playback instructions (101Mb ZIP)

March 25th

Virgilio Gomez-Rubio (University of Castilla-La Mancha)
Spatial epidemiology and disease mapping in R

Virgilio reviews a series of methods for point and area data relevant o spatial epidemiology.. Almost all of what is discussed is relevant more generally.

Download presentation (625Kb pdf)
Download questions log (28Kb doc)
Download resources (15kB)
Download video and playback instructions (123MB ZIP)

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