Publications by jackman
Australians and Americans, 10 years after 9/11
With Lynn Vavreck at UCLA, I ran parallel public opinion surveys in Australia and the United States, measuring attitudes on security, the fight against terrorism, the wars in Afghanistan etc, some 10 years after the 9/11 attacks. Full report here (generated with Sweave, xelatex, etc). Related To leave a comment for the author, please follow the...
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Sweave source for poll report
Sweave source for the poll report for those who expressed some interest. You’ll also need this file of R function definitions, utilities.R. I also wrote a little shell script that calls Sweave and xelatex etc, hacking the Sweave.sh script that ships with R. Related To leave a comment for the author, please follow the link and comment on their...
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roll calls, ideal points, 112th Congress
Now that classes are over, I took a little time to update my scripts that update the analysis of Congressional roll calls in close to real time. Links appear at the top of the blog. As of about 15 minutes ago, we’re up to 77 non-unanimous roll calls in the 112th Senate. The House has 474 non-unanimous roll calls under its belt. I’m p...
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tracking Australian election betting markets again (now with sparklines)
The header of my blog (above) shows the latest prices on offer in some of Australia’s election betting markets. I convert the prices to an implied probability of ALP win (factoring out the bookie’s profit margin, the so-called “overround”). I’m using some Javascript by John Resig to make Tufte-ish sparklines, although the Google vers...
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Bay Area R Users group has 1300 members
Impressive. You are not alone! Related To leave a comment for the author, please follow the link and comment on their blog: simon jackman's blog » R. R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job. Want to sh...
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pscl 1.04 live on CRAN
Update to my pscl package, now on CRAN. Biggest change: fixing a bug in the way MCMC draws for item parameters were being stored and summarized by ideal. Related To leave a comment for the author, please follow the link and comment on their blog: simon jackman's blog » R. R-bloggers.com offers daily e-mail updates about R news and tutorials ...
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Rudd, the last one standing?: Federal implications of QLD state election results
Labor won 15 of Queensland’s 29 House of Reps seats in the 2007 Federal election (AEC details here). Yet just three years later, in the 2010 Federal election, Labor won only 8 of 30 Queensland Reps seats, with 33.6% of 1st preferences (a swing of -9.3 percentage points). Labor’s best performance on 1st preferences in 2010 was in Capricorni...
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CRAN might get tenure at Yale?
From one of the R lists I follow: Today (2012-08-23) on CRAN [1]: “Currently, the CRAN package repository features 4001 available packages.” These packages are maintained by approximately 2350 different folks. Previous milestones: 2011-05-12: 3,000 packages [1] 2009-10-04: 2,000 packages [2] 2007-04-12: 1,000 packages [3] 2004-10-01: 500 p...
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my 1st post for the Guardian Australia
I’ll be contributing a piece about once a week for the Guardian Australia, under a part of the web site we’re calling The Swing. The set of graphs from my 1st effort were rendered in-line and rather low-res. Bigger, full res versions appear below; click on the in-line versions. It would be great to find a way to quickly make nice, web-frie...
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ideal point graphics, via d3
I’ve updated some of the graphical displays of the ideal point estimates I serve up here. I’ve rendered some of these in d3, with some rollover lah-de-dah: (1) 113th House ideal points in a long “caterpillar” format; (2) scatterplot of ideal point against Obama 2012 vote in district. Screenshot of the scatterplot appears below. My R scri...
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