Kai Arzheimer http://www.kai-arzheimer.com/blog A political science blog Wed, 03 Mar 2010 20:55:42 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 Extreme Right Bibliography Online http://feedproxy.google.com/~r/KaiArzheimer/~3/cBpUB8sbsW0/ http://www.kai-arzheimer.com/blog/2010/03/03/extreme-right-bibliography-online/#comments Wed, 03 Mar 2010 20:55:42 +0000 admin http://www.kai-arzheimer.com/blog/?p=384 Over the last two decades I have accumulated thousands of references that have travelled with me all the way from bibtex-mode through Endnote, Citavi and some more obscure packages until we finally came full circle and ended up in bibtex-mode again. To my mild surprise, my use of (some) keywords has been fairly consistent so that it was relatively easy (using make, bibtool and bibtex2html) to create a 380+ entries strong online bibliography on the Extreme Right in Western Europe. Enjoy.

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  • Phd seminar @ #cologne #

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    Source: Long/Freese, Regression Models for Categorical Dependent Variables Using Stata

    I use emacs/\LaTeXfor all my textprocessing needs, and for the last four or five years, I have created all my slides with Till Tantaus excellent “beamer” class. At the moment, I’m teaching a 2nd year stats course (imagine doing this with PowerPoint – the horror! the horror!), so I sometimes use graphs from the assigned text like this one from Long&Freese that illustrates the latent variable/threshold interpretation of the binary logit model. The message should be fairly clear: y^{*} depends on x andfollows a standard logistic distribution around its conditional mean.

    animation 300x224 All singing, all dancing 3d function plots with beamer, pgfplots and animate.sty

    Click to download the animated PDF. Requires javascript, so view in Acrobat reader.

    But the fact that the bell-curve lies flat in the x-y^{*} plane confused my students no end. So I wasted half a day on creating a nice 3d-plot for them. After trying several options, I settled on pgfplots.sty, which builds on tikz/pgf, the comprehensive, portable graphics package designed by Tantau (here’s a gallery with most amazing examples of what you can do with this little gem). Plotting data and functions with pgfplots in 2d or 3d is a snap, so that was not too hard. Eventually.

    Finally, in a desperate attempt to drive the message home, I enlisted the help of animate.sty, yet another amazing package that creates a javascript-based inline animation from my \LaTeX source (requires Acrobat reader). So the bell-curves pop out of the plane, in slow motion. Did it help the students to see the light? I have no idea. Here is the source.

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    ]]>     http://www.kai-arzheimer.com/blog/2010/01/23/all-singing-all-dancing-3d-function-plots-with-beamer-pgfplots-and-animate-sty/feed/ 3 http://www.kai-arzheimer.com/blog/2010/01/23/all-singing-all-dancing-3d-function-plots-with-beamer-pgfplots-and-animate-sty/     How to get from Stata to Pajek http://feedproxy.google.com/~r/KaiArzheimer/~3/eRvo_GE2G7A/ http://www.kai-arzheimer.com/blog/2010/01/10/how-to-get-from-stata-to-pajek/#comments Sun, 10 Jan 2010 21:02:08 +0000 admin http://www.kai-arzheimer.com/blog/?p=362 I’m teaching an introductory SNA class this year. Following a time-honoured tradition, I conducted a small network survey at the beginning of the class using Limesurvey. Getting the data from Limesurvey to Stata via CSV was easy enough. Here is the data set. But how does one get the data from Stata to Pajek for analysis? Actually, it’s quite easy.

    First, we need to change the layout of the data. In the data set, there is one record for each of the 13 respondent. Each record has 13 variables, one for each (potential) arc connecting the respondent to other students in the class. This is equivalent to Stata’s “wide” form. Stata’s reshape command will happily re-arrange the data to the “long” form, with one record for each arc. This is what Pajek requires.

    Second, we need to save the data as an ASCII file that can be read into Pajek. This is most easily done using Roger Newson’s listtex, which can be tweaked to write the main chunks of a Pajek file. Here is the code, which should be readily adapted to your own problems.

    If you are interested, you can get the whole package from within Stata: net from http://www.kai-arzheimer.com/stata/

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    • The Data and Story Library – DASL (pronounced “dazzle”) is an online library of datafiles and stories that illustrate the use of basic statistics methods. We hope to provide data from a wide variety of topics so that statistics teachers can find real-world examples that will be interesting to their students. Use DASL’s powerful search engine to locate the story or datafile of interest.
    • Drawing graphs using tikz/pgf & gnuplot | politicaldata.org -
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    ]]>     http://www.kai-arzheimer.com/blog/2010/01/10/statistics-and-data-links-roundup-for-november-23rd-through-december-29th/feed/ 0 http://www.kai-arzheimer.com/blog/2010/01/10/statistics-and-data-links-roundup-for-november-23rd-through-december-29th/     Radicalism and Fluffy Bunnies http://feedproxy.google.com/~r/KaiArzheimer/~3/-aK6UM44WIk/ http://www.kai-arzheimer.com/blog/2009/12/22/radicalism-and-fluffy-bunnies/#comments Tue, 22 Dec 2009 20:35:43 +0000 admin http://www.kai-arzheimer.com/blog/?p=353 Without doubt, late December is exactly the right time for reflection and (re-)assessment. Looking back on the last months, I had too many conference dinners, not nearly enough conference beers/chats, and definitively too many conference papers to read. Amongst these, the prize for the most original political science graph (along with the price for the most pointless use of too-cute images) goes to the unnamed creator of the pastiche on the right, which I have not made up and which probably just goes to show that concepts of the good are relative. Or something along these lines. As an aside, I am sure that somewhere in the world there is a culture for which The Fluffy Bunny is evil incarnate.

    Competing Concepts of the Good

    Competing Concepts of the Good

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  • On my way to #Bielefeld http://tinyurl.com/yofrgj Probably the last extreme right talk for this month #

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  • Right-winger are causing climate change: on my way to yet another right-wing extremism conference at #Manchester #

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    ]]>     http://www.kai-arzheimer.com/blog/2009/11/28/twitter-weekly-updates-for-2009-11-28/feed/ 0 http://www.kai-arzheimer.com/blog/2009/11/28/twitter-weekly-updates-for-2009-11-28/     Statistics and Data links roundup for November 14th through November 23rd http://feedproxy.google.com/~r/KaiArzheimer/~3/T_Tnh7rICXg/ http://www.kai-arzheimer.com/blog/2009/11/23/statistics-and-data-links-roundup-for-november-14th-through-november-23rd/#comments Mon, 23 Nov 2009 22:21:10 +0000 kai http://www.kai-arzheimer.com/blog/?p=339 Statistics and Data links roundup for November 14th through November 23rd:

    It’s surprisingly difficult to find suitable datasets for a sna workshop that are relevant for political scientists.

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    Notre Dame de Strasbourg
    Image by Claude-Olivier Marti via Flickr

    Here is a short presentation on the electorates of the Western European Extreme Right I gave last Thursday at the Collège Doctoral Européen de Strasbourg.

    And here is the

    Summary

    • Clear socio-demographic profile: young, male, working/lower middle class
    • Clear attitudinal profile:
      • Not necessarily fully paid-up extremists
      • But dissatisfied with politics and suspicious of immigrants and elites
    • Little support for disintegration thesis
    • Personality traits and additional factor?
    • Findings in line with theories of values, preferences, group conflict
    • Contextual factors often make a difference

    But …

    • Very strong country effects remain after controlling for context
    • Serious limits on the number and quality contextual control variables
    • More/better information on parties needed
    • Comparative media studies sorely lacking
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