Monthly Archives: January 2011

New R User Group in Kansas City

January 6, 2011
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There's a new R User Group based in Kansas City, Kansas. Abraham Mathew just launched the group's website, and is looking for R users in the area to kick things off: This group was started to bring together R users in the Kansas City area to exchange knowledge and provide guidance to new R users. We hope to have...

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Some market predictions

January 6, 2011
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Some market predictions

We look at a few forecasts for the year 2011 that we’ve run across, and compare them with the prediction distributions presented in Revised market prediction distributions. FTSE 100 There is a “range forecast” on an Interactive Investor page of 5350 to 6565.  It isn’t clear (to me at least) what this means, but I … Continue reading...

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sab-R-metrics: Basics of Vectors and Data Calling

January 6, 2011
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Wednesday, I began a new series called "sab-R-metrics". My hope is that it reduces the frustration that goes along with learning a new programming language and enhances others' ability to perform their own analysis in baseball or other sports. However, these tutorials will hopefully allow you to use these skills in other areas as well. ...

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Ecological networks from abundance distributions

January 6, 2011
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Ecological networks from abundance distributions

Another grad student and I tried recently to make a contribution to our understanding of the relationship between ecological network structure (e.g., nestedness) and community structure (e.g., evenness)......Alas, I had no luck making new insights. How...

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Graph gallery in R

January 6, 2011
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Graph gallery in R

R is sometime criticized for producing graphs not as elaborated as Matlab ones, or other softwares’. Here is a link to a graph gallery by Romain François to “enhance your data visualization with R”. The corresponding R code is given. Might be useful for ENSAE students for ‘statap’ projects. Below are four examples. The maps

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Learning R — Documentation

January 6, 2011
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We use R a lot.  R takes care of many our basic data management needs.  R is an awesome statistical analysis package.  R allows you to produce exceptional data graphics.  The only problem is … R has a wicked learning …   read ...

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Short review of the R book

January 5, 2011
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Short review of the R book

David Scott wrote a review of Introducing Monte Carlo Methods with R in the International Statistical Review that is rather negative, since the main bulk reads as follows: I found some aspects of the book very disappointing. The first chapter (“Basic R Programming”) has some unfortunate mistakes and some statements, which are contentious at least

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My first R package: zipcode

January 5, 2011
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My first R package: zipcode

My first package, zipcode, is now available on CRAN. It contains the CivicSpace database of 43,191 U.S. zip codes.

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sab-R-metrics: Introduction to R

January 5, 2011
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sab-R-metrics: Introduction to R

In a recent post, I briefly mentioned that I may turn a majority of the focus of this blog to teaching R commands for use with sabermetric analysis. Only a few days later, Ricky Zanker began a new column at The Hardball Times doing just that. But that's okay. Hopefully both his and mine...

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New approach to analysis of phylogenetic community structure

January 5, 2011
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New approach to analysis of phylogenetic community structure

Anthony Ives, of University of Wisconsin-Madison, and Matthew Helmus of the Xishuangbanna Tropical Botanical Garden, present a new statistical method for analyzing phylogenetic community structure in an early view paper in Ecological Monographs. See th...

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