Monthly Archives: January 2010

Short Monte Carlo course in San Antonio

January 21, 2010
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Short Monte Carlo course in San Antonio

Just a reminder that I will teach a very short course on March 17 in San Antonio, Texas, based on our “Introducing Monte Carlo Methods with R” book, in the first day of the meeting  Frontiers of Statistical Decision Making and Bayesian Analysis, in honour of Jim Berger, There still are a

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How to make a heat map in R

January 21, 2010
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How to make a heat map in R

FlowingData has just posted a nice step-by-step tutorial on how to make a heat-map in R, like this one on attributes of NBA scorers: If you want to take the concept a step further with time-series data, you can also create calendar heat-maps in R. For example, you can track the level of activity in a forum, or the...

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Web Development with R

January 21, 2010
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Presentations given at the Bay Area useR Group on January 10, 2010 by Jeroen Ooms, on how to create web applications use R.UPDATE: To view an alternative HD quality click here

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RCimate Script: Recent Total Solar Irradiance (TSI) Trends

January 21, 2010
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RCimate Script: Recent Total Solar Irradiance (TSI) Trends

This RClimate Script lets users retrieve and plot the latest data file on daily total solar irradiance (TSI) data from NASA’s  Solar Radiation and Climate Experiment (SORCE) Mission. The trend trend chart shows daily values from 2/25/03 to about one week before when the R script is run. Recent TSI Trends Here’s the 1/21/10 plot of

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R AnalyticFlow

January 21, 2010
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R AnalyticFlow

R AnalyticFlow seems to be a nice tool to have a good overview over the analysis. The same kind of mode is available in Orange and SAS Enterprise Guide. I have not tried it yet, though. Does anyone have any experiences with it?Update on 2010-07-31: the...

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R AnalyticFlow

January 21, 2010
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R AnalyticFlow

R AnalyticFlow seems to be a nice tool to have a good overview over the analysis. The same kind of mode is available in Orange and SAS Enterprise Guide. I have not tried it yet, though. Does anyone have any experiences with it?Update on 2010-07-31: the...

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writeNIfTI() is fully compatible with FSLView

January 21, 2010
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With the NIfTI-1 header extensions the world is your oyster.  We decided that one use for such a capability is to keep an audit trail of all operations performed on the image data volume.  This is a key feature in the dcemriS4 package.  ...

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writeNIfTI() is fully compatible with FSLView

January 21, 2010
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With the NIfTI-1 header extensions the world is your oyster.  We decided that one use for such a capability is to keep an audit trail of all operations performed on the image data volume.  This is a key feature in the dcemriS4 package.  ...

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UseR 2010 and commercial applications of R

January 21, 2010
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Preparations are well underway for the annual R user conference useR! 2010, to be held at NIST (about 25 miles outside of Washington, DC) July 20-23. This meeting is a true user conference: almost all of the presentations at the conference are contributed by ordinary R users. So, to continue the success of previous years the conference committee needs...

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ggplot2: Crayola Crayon Colours

January 21, 2010
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ggplot2: Crayola Crayon Colours

Statistical Algorithms blog attempted to recreate a graph depicting the growing colour selection of Crayola crayons in ggplot2 (original graph below via FlowingData). He also asked the following questions: Is there an easier way to do this? How can I make the axes more like the original? What about the white lines between boxes and

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