Posts Tagged ‘ Learning ’

introduction to R: learning by doing (part 2: plots)

July 10, 2012
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introduction to R: learning by doing (part 2: plots)

Lets go one with the second part of learning R by doing R (you will find the first part here. As we have used vectors, matrices and loops in the first part, we will concentrate on graphics in this one. but first we will need data to plot: Sometimes you will need several plots in

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introduction to R: learning by doing (part 1)

July 9, 2012
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introduction to R: learning by doing (part 1)

Geography is often about statistics as it is the basis for fast exchange of information: providing a mean and standard deviation to the audience is often much easier then showing raw data: Learning a script language for this purpose can be a hard-ass work. But I think it is more often a need of practice.

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Code for Machine Learning for Hackers

February 16, 2012
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With the release of the eBook version of Machine Learning for Hackers this week, many people have been asking for the code. With good reason—as it turns out—because O’Reilly still (at the time of this writing) has not updated the book page to include a link to the code. For those interested, my co-author John Myles

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Some code to help you remember numbers

January 17, 2012
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Some code to help you remember numbers

Two posts ago we showed you the digit sound system for remembering numbers. This week we provide two computer programs to help you create mnemonics.

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Create an animated clock in R with ggplot2 (and ffmpeg)

August 12, 2011
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Because it’s Friday—and I needed to create this for a separate visualization—here is how to create an animated clock in R using ggplot2.In just about 20 lines of code! And here is the clock…I think this is a nifty way to show time elapse, rather than the windowed timelines I had used previously.

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Clustering U.S. Senators using roll call voting data

July 22, 2011
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Clustering U.S. Senators  using roll call voting data

For our forthcoming book on machine learning for hackers, John Myles White and I will discuss clustering, and various methods for doing so. One common method for clustering observations

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A year of Chicago’s crime, in 30 seconds

June 21, 2011
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Yesterday Brett Goldstein, the Chief Data Officer for the City of Chicago, announced on Twitter the release of Chicago’s crime data for the past year. The data is very detailed, and wonderful resource for criminologist and social scientists alike. I have been playing around with the data a bit, and have produced an animation

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Amanda Cox on How The New York Times Graphics Department Uses R

March 14, 2011
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Last month, Amanda Cox from The New York Times Graphic Department gave a great talk to the NYC R Statistical Programming Meetup. I’ve just got around to uploading the video, which has been broken into a part one and part two. You can also view the videos embedded after the jump. Amanda made use of

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Language used by Academics with the Protection of Anonymity

March 14, 2011
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Language used by Academics with the Protection of Anonymity

Those in the political science discipline probably remember their first encounter with poliscijobrumors.com. For those outside, you have probably never heard of this particular message board, and you would have no reason to. As the URL suggests, the board specializes in rumor, gossip, back-bitting, mudslinging, and the occasional lucid thread on the political science

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Visualizing the Language Used by Academics when Protected by Anonymity

March 7, 2011
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Those in the political science discipline probably remember their first encounter with poliscijobrumors.com. For those outside, you have probably never heard of this particular message board, and you would have no reason to. As the URL suggests, the board specializes in rumor, gossip, back-bitting, mudslinging, and the occasional lucid thread on the political science

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