Monthly Archives: November 2011

project euler-Problem 43

November 7, 2011
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The number, 1406357289, is a 0 to 9 pandigital number because it is made up of each of the digits 0 to 9 in some order, but it also has a rather interesting sub-string divisibility property.Let d1 be the 1st digit, d2 be the 2nd digit, and so on. In this way, we note the...

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ABC on wordpress

November 7, 2011
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ABC on wordpress

Erkan Buzbas sent me an email about his webpage (operated as a wordpress blog) on ABC. It contains different items of information on ABC research and an hopefully growing list of references. After Scott Sisson’s tweet on ABC_research (latest news: two ABC sessions in ISBA 20122, Kyoto),  here comes another way to keep posted about

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Webinar Nov 17: What’s new in Revolution R Enterprise 5.0

November 7, 2011
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Revolution R Enterprise 5.0 will be released soon, and Sue Ranney, VP of Development at Revolution Analytics, will host a webinar on Thursday November 17 to get you up to speed on the latest features: Revolution R Enterprise 5.0 is Revolution Analytics’ scalable analytics platform. At its core is Revolution Analytics’ enhanced Distribution of R, the world’s most widely-used...

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Coming out of the (Bayesian) closet: multivariate version

November 7, 2011
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Coming out of the (Bayesian) closet: multivariate version

This week I’m facing my—and many other lecturers’—least favorite part of teaching: grading exams. In a supreme act of procrastination I will continue the previous post, and the antepenultimate one, showing the code for a bivariate analysis of a randomized … Continue reading →

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Web Scraping Google URLs

November 7, 2011
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Web Scraping Google URLs

Google slightly changed the html code it uses for hyperlinks on search pages last Thursday, thus causing one of my scripts to stop working. Thankfully, this is easily solved in R thanks to the XML package and the power and simplicity of XPath expressions: Lovely jubbly! P.S. I know that there is an API of

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Code Optimization: One R Problem, Eleven Solutions – Now Thirteen!

November 7, 2011
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Code Optimization: One R Problem, Eleven Solutions – Now Thirteen!

Following up from my previous post “Code Optimisation: One R Problem, Ten Solutions – Now Eleven!” I figured out a twelfth solution after writing that blog post. Furthermore, half way through writing this blog post I figured out a thirteenth solution too. As a recap, the problem is taken from rwiki where the goal is to find

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project euler-Problem 41

November 7, 2011
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We shall say that an n-digit number is pandigital if it makes use of all the digits 1 to n exactly once. For example, 2143 is a 4-digit pandigital and is also prime.What is the largest n-digit pandigital prime that exists?Read More: 288 Words Totally

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Bayesian modeling using WinBUGS

November 6, 2011
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Bayesian modeling using WinBUGS

Yes, yet another Bayesian textbook: Ioannis Ntzoufras’ Bayesian modeling using WinBUGS was published in 2009 and it got an honourable mention at the 2009 PROSE Award. (Nice acronym for a book award! All the mathematics books awarded that year were actually statistics books.) Bayesian modeling using WinBUGS is rather similar to the more recent Bayesian

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What is important for a loan?

November 6, 2011
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  Few months back I read this post, which referred to this amazing data set. The numbers are for individuals who borrowed money, amounts, term and conditions of the loans and much more. Most of the people naturally paid back … Continue reading →No related posts.

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Rcpp talk at Seattle RUG next month

November 6, 2011
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The Seattle R User Group was kind enough to invite me to give a talk about R, C++ and Rcpp.So if you can make it to the Thomas building of the Fred Hutchinson Cancer Research Center in Seattle, WA, on December 7, I would love to see you there. I ha...

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