## Example 8.16: Exact logistic regression

November 30, 2010
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In example 8.15, on Firth logistic regression, we mentioned alternative approaches to separation troubles. Here we demonstrate exact logistic regression. The code for this appears in the book (section 4.1.2) but we don't show an example of it there. ...

## Sweave Tutorial 3: Console Input and Output – Multiple Choice Test Analysis

November 30, 2010
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This post provides an example of using Sweave to perform an item analysis of a multiple choice test. It is designed as a tutorial for learning more about using Sweave in a mode where console input and output is displayed. Copies of all source code a...

## Sweave Tutorial 3: Console Input and Output – Multiple Choice Test Analysis

November 30, 2010
By

This post provides an example of using Sweave to perform an item analysis of a multiple choice test. It is designed as a tutorial for learning more about using Sweave in a mode where console input and output is displayed. Copies of all source code a...

## Hägerstrand Time-Space Cube

November 30, 2010
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## John Chambers on R and Multilingualism

November 29, 2010
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John Chambers, one of the creators of R's predecessor S and a current member of the R Core Group, gave a seminar at Stanford last week titled "R, other languages and object-oriented programming". Unfortunately, I was away for the Thanksgiving break and couldn't make it myself, but John has kindly made his slides (PDF) available for download. The talk...

## John Chambers on R and Multilingualism

November 29, 2010
By

John Chambers, one of the creators of R's predecessor S and a current member of the R Core Group, gave a seminar at Stanford last week titled "R, other languages and object-oriented programming". Unfortunately, I was away for the Thanksgiving break and couldn't make it myself, but John has kindly made his slides (PDF) available for download. The talk...

## Statistique de l’assurance STT6705V, partie 11

November 29, 2010
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Last course will be uploaded soon (the links will be here and there). The R code considered is given below. First, we had to work a little bit on the datasets, tabB=read.table("http://perso.univ-rennes1.fr/arthur.charpentier/tabB.csv", sep=";",head...

## SAS and R joins SAS-x

November 29, 2010
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Tal Galili, organizer of the R-bloggers blog aggregator, has opened a new aggregator for people blogging about SAS. If you're unfamiliar with the concept, an aggregator is a single blog which republishes (with permission, in this case) the entries fro...

## INFORMS Data Mining Competition leaders used Open Source software

November 29, 2010
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The results of 2010 INFORMS data mining competition just recently finished.  The leaders were presented at the 2010 Annual INFORMS Conference.  The 2010 INFORMS data mining competition goal was to determine short term movements in stock price...

## INFORMS Data Mining Competition leaders used Open Source software

November 29, 2010
By

The results of 2010 INFORMS data mining competition just recently finished.  The leaders were presented at the 2010 Annual INFORMS Conference.  The 2010 INFORMS data mining competition goal was to determine short term movements in stock price...

## Oct 2010 Year-To-Date Global Temperature Anomaly 1st in 2 Series, 2nd in 3 Series

November 29, 2010
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This post shows the YTD global land – ocean temperature anomaly (LOTA) trends for the 5 major series through October, 2010 and how  2010 YTD ranks over the entire record for each series. The source data  file link is provided. … Continue ...

## Joy of Stats coming soon

November 29, 2010
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The Joy of Stats really is a joy.  It will be shown on BBC4, apparently scheduled for December 7.  (That date comes from Hans Rosling on twitter, I haven’t found scheduling evidence at the BBC.) I saw its debut at the Royal Statistical Society on World Statistics Day. Here is a five minute excerpt: You … Continue reading...

## Sweave Tutorial 2: Batch Individual Personality Reports using R, Sweave, and LaTeX

November 29, 2010
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This post documents an example of using Sweave to generate individualised personality reports based on responses to a personality test. Each report provides information on both the responses of the general sample and responses of the specific respond...

## Sweave Tutorial 2: Batch Individual Personality Reports using R, Sweave, and LaTeX

November 29, 2010
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This post documents an example of using Sweave to generate individualised personality reports based on responses to a personality test. Each report provides information on both the responses of the general sample and responses of the specific respond...

## Getting Started with Git, EGit, Eclipse, and GitHub: Version Control for R Projects

November 28, 2010
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This post provides information on (a) installing Git using the Eclipse plugin Egit. (b) uploading repositories to GitHub, and (c) links to resources on Git, Git and LaTeX, and Git and R. The focus is on version control for people working on R, Sweave, ...

## Getting Started with Git, EGit, Eclipse, and GitHub: Version Control for R Projects

November 28, 2010
By

This post provides information on (a) installing Git using the Eclipse plugin Egit. (b) uploading repositories to GitHub, and (c) links to resources on Git, Git and LaTeX, and Git and R. The focus is on version control for people working on R, Sweave, ...

## Computing evidence

November 28, 2010
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The book Random effects and latent variable model selection, edited by David Dunson in 2008 as a Springer Lecture Note. contains several chapters dealing with evidence approximation in mixed effect models. (Incidentally, I would be interested in the story behind the  Lecture Note as I found no explanation in the backcover or in the preface.

## Analyst First – SURF

November 28, 2010
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This presentation is aimed at all those working in commercial and government analytics, irrespective of what tools they use, and also to those students intending on such a career. R and other open source tools play a powerful, unique and … Continue reading →

## Random variable generation (Pt 1 of 3)

November 28, 2010
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$Random variable generation (Pt 1 of 3)$

As I mentioned in a recent post, I’ve just received a copy of Advanced Markov Chain Monte Carlo Methods. Chapter 1.4 in the book (very quickly) covers random variable generation. Inverse CDF Method A standard algorithm for generating random numbers is the inverse cdf method. The continuous version of the algorithm is as follows: 1.

## parser 0.0-12

November 28, 2010
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I've pushed a new version of the parser package to CRAN. This is the first release that depends on Rcpp, which allowed me to reduce the code size and increase its maintainability. This also features a faster version of nlines, a function that r...