[gov3009-l] Jeff Gill on "Circular Data in Political Science and How to Handle It"

Justin Grimmer jgrimmer at fas.harvard.edu
Mon Apr 21 13:13:59 EDT 2008

Dear Applied Statistics Community,

Please join us this Wednesday when Jeff Gill--Department of Political
Science and Director Center for Applied Statistics, Washington University St
Louis-- will present "Circular Data in Political Science and How to Handle
It", work that is joint with Dominik Hangartner.  Jeff and Dominik provided
the following abstract

There has been no attention to circular (purely cyclical) data in political
science research. We show
that such data exists and is generally mishandled by models that do not take
into account the inherently
recycling nature of some phenomenon. Clock and calendar effects are the
obvious cases, but directional
data exists as well. We develop a modeling framework based on the von Mises
distribution and apply it to
two datasets: casualties in the second Iraq war and suicides in Switzerland.
Results clearly demonstrate
the importance of circular regression models to handle periodic data.

Jeff and Dominik also provided a preliminary draft of their paper, which is
available here<http://people.fas.harvard.edu/%7Ejgrimmer/gill_hangartner_IQSS.pdf>

The applied statistics workshop meets at 12 noon in room N-354 of
CGIS-Knafel (1737 Cambridge St), with a light lunch served.  The
presentations begin around 1215 and conclude at about 130 pm.

Please send me any questions or comments

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