Comments for David B. Sparks

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11/14/11--16:16: Comment on Isarithmic History of the Two-Party Vote by le's blog » Blog Archive » Republikanisches Chaos - (chan 1858018)

[...] 1. Es gibt keine Klimaprobleme, weil Gott das Versprochen hat. 2. Agenda: Schaden anrichten und den Demokraten anhängen 3. Das Zweiparteiensystem visualisiert [...]


11/20/11--23:01: Comment on Choropleth Maps of Presidential Voting by Trends in Demography | Introduction to Sociology (chan 1858018)

[...] http://dsparks.wordpress.com/2010/11/01/choropleth-maps-of-presidential-voting/ [...]


12/21/11--07:51: Comment on Isarithmic Maps of Public Opinion Data by » Isarithmic Maps of Public Opinion Data govMapper (chan 1858018)

[...] the site. DATE: 21/12/2011 | CATEGORY: Uncategorized | Leave a comment [...]


12/22/11--16:41: Comment on Isarithmic Maps of Public Opinion Data by Experimental isarithmic maps visualise electoral data « Another Word For It (chan 1858018)

[...] a fifth-year PhD candidate in the Department of Political Science at Duke University, has today published a fascinating set of experiments using ‘Isarithmic’ maps to visualise US party identification. Isarithmic maps are essentially [...]


01/17/12--12:08: Comment on Isarithmic Maps of Public Opinion Data by Nate (chan 1858018)

Nice visualizations. I had the same reaction as others: before I read anything, I thought the black looks cooler, but the white is easier to make sense of, in part because it is closer to purple. This isn't as bad with the red-to-green scheme on black, but I don't like the red-to-green palette.


01/17/12--12:58: Comment on Isarithmic Maps of Public Opinion Data by paul G. (chan 1858018)

1) Gorgeous. 2) Innovative. 3) Strongly agree with those who suggest the white background. This is not about aesthetics, it's about interpretability. The dark background does not convey the correct information to the viewer. Dark implies dense which implies lots of observations, directly the opposite of what you are trying to convey.


01/17/12--14:13: Comment on Isarithmic Maps of Public Opinion Data by Oooh. Pretty. | Stats Chat (chan 1858018)

[...] David Sparks has some nice maps of public opinion, using transparency to indicate the level of uncertainty. [...]


01/25/12--20:54: Comment on Isarithmic Maps of Public Opinion Data by Buka (chan 1858018)

http://en.wikipedia.org/wiki/Distance-weighted_estimator


02/07/12--16:40: Comment on Choropleth tutorial and regression coefficient plots by bshor (chan 1858018)

David, great tutorial. What about doing a faceted grid of maps, a la Gelman?


02/07/12--17:32: Comment on Choropleth tutorial and regression coefficient plots by d sparks (chan 1858018)

On nice thing about Dr. Wickham's ggplot2 package is that it makes faceting very straightforward (see <a href="http://had.co.nz/ggplot2/facet_grid.html" title="facet_grid" rel="nofollow">facet_grid</a>). If some time becomes available, I might take the opportunity to put together a tutorial on it -- I have some data for which the small multiples approach would be useful.