Monthly Archives: December 2010

Slides from Revolution R: 100% R and More

December 8, 2010
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If you missed today's webcast on Revolution R Enterprise: 100% R and more, the slides from the presentation are now available for download, and a replay of the webcast (in WMV format) will be available at that same link very soon. And if you missed some of the links I mentioned in the presentation, here they are for your...

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Interesting Posts at Rational Past Time Related to My Previous Strike Zone Map Post

December 8, 2010
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Interesting Posts at Rational Past Time Related to My Previous Strike Zone Map Post

J-Doug at Rational Pastime has some cool posts looking at umpire strike zones at his site (and cross-posted at Beyond the Boxscore). I was curious about this issue as well with some work I've been doing here in the office (which I'll refrain from talk...

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New paper: Survival analysis

December 8, 2010
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New paper: Survival analysis

Each year I try to carry out some statistical consultancy to give me experience in other areas of statistics and also to provide teaching examples. Last Christmas I was approached by a paediatric consultant from the RVI who wanted to carry out prospective survival analysis. The consultant, Bruce  Jaffray, had performed Nissen fundoplication surgery on

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cumsum ( rnorm(50), lend="butt", lwd=12, type="h" ) Cumulative…

December 8, 2010
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cumsum ( rnorm(50), lend="butt", lwd=12, type="h" )
Cumulative…

cumsum ( rnorm(50), lend="butt", lwd=12, type="h" ) Cumulative sum of 50 draws from a normal distribution. File this under mysteries of the Central Limit Theorem.

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Fantasy football (oops, soccer)

December 8, 2010
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Fantasy football (oops, soccer)

Recently a colleague asked if I could use R/statistics to form a dream soccer team from a pool of soccer players, given basic player information like name, club, cost, points.The idea is to form a team with your preferred configuration of number of def...

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Fantasy football (oops, soccer)

December 8, 2010
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Fantasy football (oops, soccer)

Recently a colleague asked if I could use R/statistics to form a dream soccer team from a pool of soccer players, given basic player information like name, club, cost, points.The idea is to form a team with your preferred configuration of number of def...

Read more »

R: Using RColorBrewer to colour your figures in R

December 8, 2010
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R: Using RColorBrewer to colour your figures in R

RColorBrewer is an R packages that uses the work from http://colorbrewer2.org/ to help you choose sensible colour schemes for figures in R. For example if you are making a boxplot with eight boxes, what colours would you use, or if you are drawing...

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R: Using RColorBrewer to colour your figures in R

December 8, 2010
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R: Using RColorBrewer to colour your figures in R

RColorBrewer is an R packages that uses the work from http://colorbrewer2.org/ to help you choose sensible colour schemes for figures in R. For example if you are making a boxplot with eight boxes, what colours would you use, or if you are drawing...

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Google AI Challenge: Scores/Rank by Language

December 8, 2010
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Google AI Challenge: Scores/Rank by Language

A quick follow up to the previous post: about the the scores in the 2010 Google AI competition relative to programming language.  The chart above makes each language visible and discrete - and the scales are the same.library(ggplot2)df<- read.c...

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Google AI Challenge: Scores/Rank by Language

December 8, 2010
By
Google AI Challenge: Scores/Rank by Language

A quick follow up to the previous post: about the the scores in the 2010 Google AI competition relative to programming language.  The chart above makes each language visible and discrete - and the scales are the same.library(ggplot2)df<- read.c...

Read more »