Recent arXiv postings

August 4, 2010
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Recent arXiv postings

With too little time, too many things to do on my plate, here are some recent arXiv postings I won’t have time to comment: Adaptive Monte Carlo on multivariate binary sampling spaces. (arXiv:1008.0055v1) Mixture Decomposition of Distributions using a Decomposition of the Sample Space. (arXiv:1008.0204v1) Bayesian Model Selection for Beta Autoregressive Processes. (arXiv:1008.0121v1) Reference priors

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Integrating R with Geany

August 4, 2010
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According to landroni, R can also be easily integrated with Geany:Download 0.19 (non-optional), then you need to set send_selection_unsafe=true in geany.conf and assign "Send selection to terminal" to a ctrl+r keybinding or similar. As long as you...

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Integrating R with Geany

August 4, 2010
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According to landroni, R can also be easily integrated with Geany:Download 0.19 (non-optional), then you need to set send_selection_unsafe=true in geany.conf and assign "Send selection to terminal" to a ctrl+r keybinding or similar. As long as you...

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ggplot2 gui: Major feature set complete

August 4, 2010
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ggplot2 gui: Major feature set complete

(Written by Ian Fellows) There has been quite a bit of progress on the ggplot2 graphical user interface since the last post. All of the major features have been implemented, and are outlined in the vlog links below. What remains is to fix bugs, improve interface elements, and listen to feedback from users (that’s you).

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U.S. Unemployment Data: Animated Choropleth Maps

August 4, 2010
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U.S. Unemployment Data: Animated Choropleth Maps

I was curious about creating maps with ggplot2 - and was happy to find that great minds have long since tackled this topic.  Folks who are interested in how to learn about R (and ggplot2) might be interested in the process.  (There should be ...

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use R! 2010 conference — reflections

August 4, 2010
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From July 20-23, this year's use R! conference took place in Gaithersburg near Washington. I attended the conference as part of my holidays in the U.S. and had a good time there. I met some people, even though that is not the easiest thing for me to do, and I got some inspirations and ideas I outline below:Stat appsOne...

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R Creators Accept Statistical Computing Award

August 4, 2010
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In a dedicated session at the JSM conference here in Vancouver, the creators of R, Robert Gentleman and Ross Ihaka, accepted their prize (announced in January, but awarded today) from the American Statistical Association for "innovation in computing, software, or graphics that has had a great impact on statistical practice or research". It's a well-justified award: as stated by...

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How Google and Facebook are using R

August 4, 2010
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How Google and Facebook are using R

This is an older (2009) video from the kickoff meeting of the San Francisco Bay Area R Users Group. It was a panel discussion within the Predictive Analytics World conference. Video courtesy by Ron Fredericks of LectureMaker (click on the … Continue reading →

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RQuantLib 0.3.3

August 4, 2010
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A new release (now at version 0.3.3) of RQuantLib is now on CRAN and in Debian. RQuantLib combines (some of) the quantitative analytics of QuantLib with the R statistical computing environment and language. Many of the changes in this new version are ...

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RQuantLib 0.3.3

August 4, 2010
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A new release (now at version 0.3.3) of RQuantLib is now on CRAN and in Debian. RQuantLib combines (some of) the quantitative analytics of QuantLib with the R statistical computing environment and language. Many of the changes in this new version ...

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JSM 2010 [day 3]

August 4, 2010
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JSM 2010 [day 3]

The same pattern as yesterday occurred, namely that the sessions that most interested me were all together at the 10:30 and 2pm slots, while there was no talk (besides the official ones) after 4pm… After another run around Stanley Park, I took the opportunity of being late for the first session to sit outside and

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Meeting in the middle; or fudging model II regression with nls

August 3, 2010
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Meeting in the middle; or fudging model II regression with nls

My colleague Karen needed an equation to predict trunk diameter given tree height, which she hoped to base on measurements of trees in semi-arid Australian woodlands. This is the dark art of allometry and a quick google found a large number of formulae that have been used in different studies of tree dimensions. No problem: I started to...

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Meeting in the middle; or fudging model II regression with nls

August 3, 2010
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Meeting in the middle; or fudging model II regression with nls

My colleague Karen needed an equation to predict trunk diameter given tree height, which she hoped to base on measurements of trees in semi-arid Australian woodlands. This is the dark art of allometry and a quick google found a large number of formulae...

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Use Rapache: It Works!

August 3, 2010
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Use Rapache: It Works!

A half hour lecture by Jeffery Horner on RApache.

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Suggestions for R-Chart iPhone App?

August 3, 2010
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Suggestions for R-Chart iPhone App?

Have any ideas for news sources to include in  the new R-Chart iPhone App?  I am hoping to make some revisions and fixes and figured I would get some feedback from anyone who happened download it.  Specifically, I am planning on removing...

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RODM Article on the Oracle Technology Network

August 3, 2010
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RODM Article on the Oracle Technology Network

A new article over at OTN demonstrates the new RODM package that allows you to control Oracle Data Mining within the database itself using R.  This and the recent announcement over at Revolution Analytics both reveal more solutions for proces...

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Using R and r.mapcalc (GRASS) to Estimate Mean Topographic Curvature

August 3, 2010
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Using R and r.mapcalc (GRASS) to Estimate Mean Topographic Curvature

Recently I was re-reading a paper on predictive soil mapping (Park et al, 2001), and considered testing one of their proposed terrain attributes in GRASS. The attribute, originally described by Blaszczynski (1997), is the distance-weighted mean differe...

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countrycode R package

August 3, 2010
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I am digging this countrycode package in R I just found, written by a UM grad student Vincent Arel-Bundock. Very nice. Thanks! countrycode("2","cown","iso3c") "USA" It would be better if the package could handle failed matches a little more gracefully: e.g., > countrycode(c(2,730,818),"cown","iso3c") "USA" when the user was expecting to get back a vector

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Image Data and Classification with R

August 3, 2010
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03.08.2010 In this post i would like to demonstrate the ability of R to handle and classify image data with the help of ImageJ and Rserve bundled and implemented in Bio7. In general R is a very useful application for image analysis and plenty of “pure” R packages for image analysis are already available. But

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Announcing Big Data for Revolution R

August 3, 2010
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I've hinted this was coming a few times before, but with today's press release the announcement is official: the next release of Revolution R Enterprise will include "Big Data" capabilities thanks to the new RevoScaleR package. We're pretty excited at how it's turned out: it's kinda amazing to be able to use R's formula syntax like this: arrDelayLm2 <-...

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Quantitative Candlestick Pattern Recognition (Part 2 — What’s this Natural Language Processing stuff?)

August 3, 2010
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Quantitative Candlestick Pattern Recognition (Part 2 — What’s this Natural Language Processing stuff?)

I wanted to briefly add one more thought regarding the temporal nature of probabilities as was alluded to in my correspondence with Adam, as well as the prior closing comments on the Chaos post (structure coalescing and dispersing).I will borrow from t...

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JSM 2010 [day 2]

August 3, 2010
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JSM 2010 [day 2]

After a very good early run in Stanley Park, I went to a morning session on new statistical challenges in genetics, but unfortunately could not keep focussed enough (due to a very short night, still being not tuned to Pacific time!) so I ended up chatting with Sid Chib at the Springer booth about the

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RcppExamples 0.1.1

August 2, 2010
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On Friday, I quickly provided a new release of RcppExamples, our example package for using Rcpp, to CRAN. Very little content has been updated --- and a new TODO file even notes that we need to add more documentation for the new Rcpp API. And update ex...

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RcppExamples 0.1.1

August 2, 2010
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On Friday, I quickly provided a new release of RcppExamples, our example package for using Rcpp, to CRAN. Very little content has been updated --- and a new TODO file even notes that we need to add more documentation for the new Rcpp API. And update...

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inline 0.3.6

August 2, 2010
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A couple of days ago, Romain released inline release 0.3.6 to CRAN. This is a maintenance release with no user-visible changes. However, as it captures compiler errors more directly, it should help us debug Rcpp on recalcitrant platforms such as Solari...

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inline 0.3.6

August 2, 2010
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A couple of days ago, Romain released inline release 0.3.6 to CRAN. This is a maintenance release with no user-visible changes. However, as it captures compiler errors more directly, it should help us debug Rcpp on recalcitrant platforms such as Sol...

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Integrating R and Gedit

August 2, 2010
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Here is how to integrate R and Gedit using Rgedit plugin.

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Integrating R and Gedit

August 2, 2010
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Here is how to integrate R and Gedit using Rgedit plugin.

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useR! 2010 – Local R User Group Panel

August 2, 2010
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useR! 2010 – Local R User Group Panel

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