Posts Tagged ‘ applications ’

Programming languages, ranked by popularity

December 17, 2010
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Programming languages, ranked by popularity

In a presentation to the Chicago R User Group last night, Drew Conway used his new Infochimps package in R to assess the relative popularity of programming languages. Drew used the word.stats function in the Infochimps package to count the frequency of common computer languages mentioned in Twitter messages, and displayed the results in this bar chart: It's not...

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Data Driven Journalism

December 15, 2010
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Last night at the Bay Area UseR Group meeting, Peter Aldhous, San Francisco Bureau Chief of New Scientist Magazine, gave an inspiring presentation about Data Driven Journalism. Even though the newspaper industry is faltering as a business model, there's a beacon of light: journalists can be the driving force behind bringing the meaning in the huge data sets that...

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Learn Logistic Regression (and beyond)

November 23, 2010
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Learn Logistic Regression (and beyond)

One of the current best tools in the machine learning toolbox is the 1930s statistical technique called logistic regression. We explain how to add professional quality logistic regression to your analytic repertoire and describe a bit beyond that. A statistical analyst working on data tends to deliberately start simple move cautiously to more complicated methods.Related posts:

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Keeping up with election results, with R

November 3, 2010
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Keeping up with election results, with R

Yesterday's US election is pretty much over now: most of the results are in, the pundits have offered their political analysis, and there's even been a bit of mathematical analysis of the results, too. But last night as the results were flowing in, R user Brock Tibert just wanted to track the results of the Massachusetts governor's race. The...

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Winners of 2010 ggplot2 case study competition

October 18, 2010
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Winners of 2010 ggplot2 case study competition

The winners of this year's ggplot2 case study competition have been announced. I was honoured to be asked to be a judge of the competition this year, but it was a difficult job with so many excellent entries. In the end, the judging panel (which included Heike Hoffman and Hadley Wickham and me) selected three entries which each demonstrated...

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Impact of Google Instant on paid search

October 13, 2010
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Impact of Google Instant on paid search

When Google introduced Google Instant (where search results are displayed as you type), it was certainly a boon for searchers. Personally, I've started visiting the Google homepage after years of just using the search box in Firefox (and now Chrome), and enjoying the improved search experience. (And I get to see those neat Doodles, too.) But not everyone was...

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What’s for lunch? Private browsing.

August 23, 2010
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What’s for lunch? Private browsing.

Over at the Mozilla Metrics blog, Mozillan Hamilton Ulmer uses R and ggplot2 to look at when people (or at least, Firefox users that volunteered to share their usage data) enable private browsing. Turns out it isn't just "porn mode" after all: the main use turns out to be lunchtime browsing away from the employer's prying eyes: Follow the...

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R’s role in the national response to the BP Oil Spill

August 12, 2010
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In the early days of the Deepwater Horizon oil spill in the Gulf of Mexico, the rate of flow of oil from the spill was of great concern: estimating it accurately was key to coordinating the scale and scope of the response to the emergency. Unfortunately, estimates from independent sources varied widely, and BP's own estimates varied widely over...

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How to animate Google Earth with R

August 6, 2010
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How to animate Google Earth with R

We've looked before at how you can annotate geographical maps using R, but what if you want to overlay data onto a globe of the Earth, using Google Earth? The RKML package for R (from the OmegaHat project) allows you to do just that, by providing a high-level interface from R to generate KML files, which in turn are...

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Where have all the Hacker News old-timers gone?

August 5, 2010
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Where have all the Hacker News old-timers gone?

Nostalgia ain't what it used to be. As slashdot slowly loses its relevance and digg heads for a more general audience to head off competition from Twitter, loyal readers of uber-technical news aggregator Hacker News wonder if it's heading the same way. Seems like the long-standing users aren't posting links to deep, interesting articles anymore, and are instead being...

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