Monthly Archives: July 2010

R Chart

July 24, 2010
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R Chart

Been meaning to write this for awhile...An R-Chart is a statistical quality assurance tool used to determine if a process is stable (and predictable).  It is intended to maintain and improve the quality of a process (a more formal definition is av...

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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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useR 2010 at NIST in Gaithersburg

July 24, 2010
By

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 t...

Read more »

useR 2010 at NIST in Gaithersburg

July 24, 2010
By

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...

Read more »

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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Installing rgdal on Mac OS X

July 23, 2010
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The rgdal package contains bindings from R to the GDAL (Geospatial Data Abstraction Library) as well as the PROJ library. It is a dependency for numerous spatial statistics packages. Note that the binaries on the rgdal homepage are outdated — the most up-to-date version of the rgdal package can be found on CRAN. Unsurprisingly, rgdal

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Hello world!

July 23, 2010
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Throughout the course of my research, I come across a lot of obstacles and nuisances that are either undocumented or documented poorly.  Therefore, I decided to throw up this blog as a repository of sorts to store all of these little tidbits of information with the hope that it will save somebody somewhere a few minutes of

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