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...* A cartogram are geographical maps in which region boundaries are distorted to represent some property of interest, e.g. population density. For an introduction, see http://en.wikipedia.org/wiki/Cartogram and for some elegant examples for election results, see http://www-personal.umich.edu/~mejn/election Dan E. Kelley, Assoc. Prof. phone:(902)494-1694 Dept. Oceanography fax:(902)494-2885 Dalhousie University mailto:Dan.Kelley at Dal.CA Halifax, NS, Canada B3H 4J1 http://www.phys.ocean.dal.ca/~kelley/ Kelley_Dan.html

...has been addressed in various flavors, but I''m stumped and didn''t find anything in the archives. It''s not clear if it is an igraph issue or a more general problem. Thanks in advance for your patience. I am using igraph to read a gml file (http://www-personal.umich.edu/~mejn/netdata/football.zip ). The gml file contains vertex attributes (conference and team) that are provided as character/integer values. I would like to build a matrix of dimension (length.team, length.conference) where the elements are zero except for 1''s at the location of index [team, conf...

Hello, I apologize that this is off-topic. I am seeking information on perception of graphical data, in an effort to improve the plots I produce. Would anyone point me to literature reviews in this area? (Or keywords to try on google?) Is this located somewhere near cognitive science, psychology, human factors research? For example, some specific questions I have are: I recall as a child