Monthly Archives: July 2010

useR 2010 at NIST in Gaithersburg

July 24, 2010
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This past week, the annual R user conference useR! 2010 took place at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD (which is a tad northwest of Washington, DC). Kate Mullen and her team of local organizers did a truly...

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Local R User Group Panel from useR! 2010 (Video)

July 24, 2010
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As I mentioned last week, I will be hosting videos of several of the keynote speakers from this year’s useR! 2010 conference at the video Rchive. As it happens, the first video I was able to upload was the panel discussion we held on starting local R user groups. I have uploaded the video,

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useR! 2010 – Local R User Group Panel

July 24, 2010
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Panel discussion about forming local R user groups from useR! 2010. Panelists include, Jim Porzak (San Francisco Bay Area), David Smith (REvolution Analytics), John C. Nash (Ottawa, Canada), Drew Conway (New York City), Szilard Pafka (Los Angeles), M...

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How to calculate with dates and hours in R

July 24, 2010
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How to calculate with dates and hours in R

A while ago I was asked whether calculating with datums and hours is possible in R. Especially, if you added an hours to 23:45 (say Jan 1, 2010) , would R know to jump to the next day – 00:45 (jan 2, 2010)? The answer is yes. Our only job is to tell R in

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useR! 2010 done and dusted

July 23, 2010
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useR! 2010 done and dusted

:

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Thoroughly Unusual Itches

July 23, 2010
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Thoroughly Unusual Itches

I have found myself over the years in a rather awkward situation.  I work in old-school, bricks and mortar industry IT shops for the most part.  However, I love many open source projects and identify with many of the values of start up cultur...

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The counterfactual GPS!

July 23, 2010
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The counterfactual GPS!

WHAT IF YOUR GPS TOLD YOU WHAT WOULD HAVE HAPPENED IF YOU HAD TAKEN THE OTHER ROUTE? Not long ago, your Decision Science News editor was planning a trip to a book group meeting along with another member. The monthly book group takes place in Cove Neck Long Island, about an hour East of Manhattan.

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Why building R packages is good for you

July 23, 2010
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Basically every function you use in R is part of a package (often the base or stats one). Most of the advances routines, such as the differential equations solvers in simecol are brought to R in the form of Fortran (…)Read the rest of this entry »

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Turning your data into a 3d chart

July 23, 2010
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Turning your data into a 3d chart

Some charts are to help you analyse data. Some charts are to wow people. 3d charts are often the latter, but occasionally the former. In this post, we’ll look at how to turn your data into a 3d chart. Let’s use the data from this previous post. Use the code which turns the .csv spreadsheet

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Plaudits for R

July 23, 2010
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I just discovered that R core member Paul Murrell has been maintain a list of plaudits for R: newspaper articles, book reviews, remarks on mailing lists and blogs, and even gratitudes from individual R users. He's collected dozens of entries since 2001 -- great materials here if you ever need more evidence of the awesomeness of R. Paul Murrell:...

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