1415 search results for "regression"

NppToR 2.4.0 Adds Auto-Completion

August 30, 2010
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I’ve had a wonderful summer, very busy, but now I’ve finally had some time to sit down and program some thing on NppToR that I’ve been wanting to get out.  Thanks to Yihui Xie and his wonderful R script for generating auto-completion files, NppToR now has a dynamic Auto-Completion feature like the Dynamic Syntax generation

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Econometrics and R

August 30, 2010
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Econometrics and R

Econometricians seem to be rather slow to adopt new methods and new technology (compared to other areas of statistics), but slowly the use of R is spreading. I’m now receiving requests for references showing how to use R in econometrics, and so I thought it might be helpful to post a few suggestions here. A

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Hyper-g priors

August 30, 2010
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Hyper-g priors

Earlier this month, Daniel Sabanés Bové and Leo Held posted a paper about g-priors on arXiv. While I glanced at it for a few minutes, I did not have the chance to get a proper look at it till last Sunday. The g-prior was first introduced by the late Arnold Zellner for (standard) linear models,

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Wanted: R Analysis of New Scientist Covers

August 30, 2010
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Wanted: R Analysis of New Scientist Covers

Peter Aldhous and Jim Giles -- from New Scientist's San Francisco bureau -- are looking for a statistician and R user to take part in an interesting data analysis challenge, and also be part of a future article in the magazine. They were inspired by this rather tongue-in-cheek presentation where Sebastian Wernicke analyzed videos, transcripts and ratings of TED...

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MCMC Diagnostics in R with the coda Package

August 29, 2010
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MCMC Diagnostics in R with the coda Package

This is a follow up to my recent post introducing the use of JAGS in R through the rjags package. In the comments on that post, Bernd Weiss encouraged me to write a short addendum that describes diagnostic functions that you should use to assess the output from an MCMC sampler. I’ve only been using

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In Search of Power-laws: WikiLeaks Edition

August 26, 2010
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In Search of Power-laws: WikiLeaks Edition

Yesterday, a commenter reminded me of the very popular hobby among scientists of searching for power-law distributions in large event data. While the commonality of scale invariance in event data is quite well known—particularly with respect to conflict data—this has not prevented many researchers from seeking and finding these patterns in data. As the commenter notes,

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Labor vote share across different types of balloting

August 26, 2010
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Labor vote share across different types of balloting

We’re starting to get more divisions reporting two-candidate preferred numbers by vote type. The emerging picture (literally) is one in which Labor’s performance on the pre-polls and postals is lagging its performance in ordinary votes. On the other hand, Labor seems to be doing well among absentee voters (the regression line sitting above the 45

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Excel Errors and Other Numerical Nightmares

August 25, 2010
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Excel Errors and Other Numerical Nightmares

Although I use Excel all the time, and I strongly encourage my students to use it for performance analysis and CaP, I was forced to include a warranty disclaimer in my GCaP book because I discovered a serious numerical error while writing Appendix B. There, my intention was just to show that Excel gives essentially the same results...

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Excel Errors and Other Numerical Nightmares

August 25, 2010
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Excel Errors and Other Numerical Nightmares

Although I use Excel all the time, and I strongly encourage my students to use it for performance analysis and CaP, I was forced to include a warranty disclaimer in my GCaP book because I discovered a serious numerical error while writing Appendix B. There, my intention was just to show that Excel gives essentially the same results...

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informality, the 2010 edition

August 24, 2010
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For the last two cycles I’ve done some simple regression analysis of the informal vote.  I saw Possum have his go at it, using a specification that is virtually the same as what I’ve run in the past (2007, 2004). The 2010 edition follows.  As usual, electorate-level informality in House of Reps voting increases with

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