Monthly Archives: August 2012

Ebola in the Congo

August 23, 2012
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Ebola in the Congo

Ebola has also appeared in the Democratic Republic of the Congo. The WHO report from 21 August reports 15 cases and 10 deaths, mostly in the town of Isiro. This outbreak is in no way related to the Ugandan outbreak … Continue reading →

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How robust is logistic regression?

August 23, 2012
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How robust is logistic regression?

Logistic Regression is a popular and effective technique for modeling categorical outcomes as a function of both continuous and categorical variables. The question is: how robust is it? Or: how robust are the common implementations? (note: we are using robust in a more standard English sense of performs well for all inputs, not in theRelated posts:

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London 2012 Olympics — Men and Women 400-metre medley

August 23, 2012
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London 2012 Olympics — Men and Women 400-metre medley

Alan brought up the suspicion to Ye’s world record in women 400 metres individual medley. And I quote: “Her last split caused controversy (deep suspicion of doping) as she swam it faster than the fastest male swimmer. I wonder how commonly this … Continue reading →

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Open Research Data Processes: KMi Crunch – Hosted RStudio Analytics Environment

August 23, 2012
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Open Research Data Processes: KMi Crunch – Hosted RStudio Analytics Environment

One of the possible barriers to widespread adoption of open notebook science is knowing where to start. Video reports of lab experiments hosted on Youtube can be easily embedded in a hosted WordPress blog; a MediaWiki wiki can be used to provide one page per experiment, with change tracking/history on each page and a shadow

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Using R for parallelizing OpenBUGS on a single Windows PC

August 22, 2012
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It seems that most of the R-parallelizing business takes place on Linux clusters. And it makes sense. Why would you want to paralellize R on just a few processors (2 or 4) of a Windows laptop PC when the whole…Read more →

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Benchmarking random-number generation from C++

August 22, 2012
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If you're writing C++ code and want to generate random numbers, you might not be aware that R provides an API to call the R RNG functionality directly. The Rcpp package's "syntactic sugar" feature makes this process easier, by automating the process of translating a subset of ordinary R code into compiled C++ code. That means you can write...

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The Kaggle Bug

August 22, 2012
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The Kaggle Bug

If you have any interest in data mining and machine learning, you might have already caught the Kaggle bug.I myself fairly recently got caught up in following the various contests and forums after reading a copy of "Practical Time Series Forecasting," ...

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Web-Scraper for Google Scholar Updated!

August 22, 2012
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Web-Scraper for Google Scholar Updated!

I have updated the Google Scholar Web-Scraper Function GScholarScaper_2 to GScholarScraper_3 (and GScholarScaper_3.1) as it was outdated due to changes in the Google Scholar html-code. The new script is more slender and faster. It returns a dataframe o...

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2014 Winter Olympics: Home Court Advantage – Russia

August 22, 2012
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2014 Winter Olympics: Home Court Advantage – Russia

"Russia is a riddle wrapped in a mystery inside an enigma."  -- Winston Churchill, radio address in 1939 A couple of weeks ago, Graph of the Week published an article describing the significant improvement in medals won by the host...

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London 2012 Olympics — world record in women 400-metre medley

August 22, 2012
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London 2012 Olympics — world record in women 400-metre medley

I’ve been going through the medal statistics in London 2012 Olympics recently. I was planning to present some extra charts, such as medal-per-milli-population or medal-vs-GDP. However, it’s a little boring to present the same kind of charts. Thus, I’d like to look into some particular … Continue reading →

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