• Discrete Choice Methods with Simulation, by Kenneth Train, Cambridge University Press, 2002 – Discrete Choice Geodatenzentrum – Hier erhalten Sie vielfältige Informationen über die Geobasisdaten der Bundesländer und des Bundes. Nutzen Sie unsere Dienste und interaktiven Karten für Bestellung, Download, Suche oder Verarbeitung von Geoinformationen.
• Statistisches Bundesamt Deutschland – Statistik lokal – Statistik lokal 2010 ist eine von den Statistischen Ämtern des Bundes und der Länder gemeinsam herausgegebene Datenbank auf DVD, die Gemeindedaten für ganz Deutschland enthält. Mit Statistik lokal 2010 können Sie über 12 000 Städte und Gemeinden in ganz Deutschland anhand ausgewählter Ergebnisse aus allen wichtigen Bereichen der amtlichen Statistik mit derzeit rund 330 Merkmalsausprägungen analysieren und vergleichen. Die DVD enthält auch die Ergebnisse für alle Kreise (kreisfreie Städte und Landkreise), Regierungsbezirke/Statistische Regionen, Bundesländer und Deutschland.

Statistics and Data links roundup for January through September 2010

• Making Working and Publication Tables in Stata – Review of various commands for making tables in Stata
• OS OpenData Supply – Download or order Ordnance Survey OpenData – open data * Outline of Great Britain<br />
  * Overview of Great Britain<br />
  * MiniScale ®<br />
  * 1:250 000 Scale Colour Raster<br />
  * OS Street View ®<br />
  * Boundary-Line ™<br />
  * OS VectorMap ™ District – New
• European Network for the Analysis of Political Text – The European Network for the Analysis of Political Texts (ENAPT) is a newly established network of PhD students and early career researchers who share an interest in the qualitative and quantitative analysis of party manifestos and other political text.<br />
  <br />
  The objectives of ENAPT include:<br />
  <br />
  * To collect and analyse political text in a systematic fashion using a combination of qualitative and quantitative methodologies,<br />
  * To organise meetings and workshops (primarily aimed at PhD students and early career researchers) regarding the coding of political text,<br />
  * To facilitate the dissemination of the findings of its members through conferences, workshops and the world-wide-web.<br />
  <br />
  ENAPT operates a mailing list at the National Academic Mailing List Service. To join the network and the mailing list, email Kostas Gemenis

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• Another data win: TfL opens up bus and tube timetables for developers (guardian.co.uk)

• 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 -

• SNAP: Network datasets -
• Network data -
• CASOS Tools: Network Analysis Data | CASOS – Network Analysis Data Casos & INSA
• NodeXL Teaching – CASCI – datasets incl. senate
• Statistics and Data links roundup -

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

• Kai Arzheimer: Vorlesung Statistik II -
• Welcome | Teaching with Data (QSSDL) – TeachingWithData.org (TwD) is a repository of tools and educational materials designed to improve quantitative literacy skills in social science courses. Built especially for faculty teaching post-secondary courses in such areas as demography, economics, geography, political science, social psychology, and sociology, the materials include stand-alone learning activities, tools, and pedagogy services.The goal is to make it easier for faculty to bring real social science data into courses across the curriculum ranging from introductory classes to senior seminars.
• Social Science Statistics Blog: The changing nature of R resources -
• Gary King – What to do About Missing Values in Time Series Cross-Section Data – James Honaker and Gary King, “What to do About Missing Values in Time Series Cross-Section Data,” American Journal of Political Science, (April, 2010), forthcoming, copy at http://gking.harvard.edu/files/abs/pr-abs.shtml. (Paper: PDF)

Image via Wikipedia

Radio 4 never fails to amaze me. This morning, just three minutes before the 9 o’clock news, they interviewed David Spigelhalter. Spiegelhalter is obviously the man who gave us BUGS. But he  is also Winton Professor of the Public Understanding of risk at the University of Cambridge, and a man who can (within the 90 seconds they allocated him) explain to a lay public why a spade in knife-crime (last summer, four people were killed in the space of just one day) is not totally unlikely and does not necessarily indicate an increase in the murder rate, illustrating the idea of clustered risks in passing. He even convinced the anchor that stats is actually fun, even if you look at 170 murders per year in a population of just 7 million Londoners. I was duly impressed (you can listen here to the interview with Spiegelhalter). In fact, I was so impressed that I googled him once I reached the office and came across his website understandinguncertainty.org, which has full coverage of the London murder mystery (that is solved by modelling a Poisson distribution of the incidents).

Click on the citations to get bibliographic data.

Unfortunately, the interpretation of the resulting coefficients is less straightforward. A recent review by Brambor, Clark and Golder (2006), however, suggests that even in top political science journals many interpretations of interaction effects are dubious if not plain wrong. The new book by Kam and Franzese has the potential to rectify this situation. Kam and Franzese start out from the proposition that in interactive models (like in a number of other models they discuss in passing), the effect of an interacted variable x does not equal its coefficient. Rather, one has to differentiate the model equation with respect to x (which requires a working knowledge in introductory calculus or a licence for Mathematica) or must calculate first differences (which is easy). The slim volume will appeal both to advanced students and applied researchers that want to get it right. It is organised around a number of running examples of recent real world political research and compares well with the older monographs in the QASS series (“the green Sage papers”) because “modern” issues such as multi-level models and standard errors for effects are addressed. The latter point is of particular importance because the very concise discussion in Kam and Franzese will save the reader the effort to skim through pages and pages of highly technical econometric treatises. While the mathematical apparatus may look a little daunting at first, it is actually very helpful. Moreover, it is accompanied by clear instructions on how to perform the necessary calculations in Stata.

• Order it from Amazon UK
• Order it from Amazon US
• Search and browse it on Google
• Find it in a library near you

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