Inside-R.org, a new community site for R

July 21, 2010
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As recently as a couple of years ago, finding information about R in the Web was hard. Other than the canonical content and mailing list archives at the official R project site, www.r-project.org, there wasn't too much else dedicated to R on the web -- and what was there was hard to find on Google without the help of...

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R Cheat Sheets and more

July 21, 2010
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R Cheat Sheets and more

Here you can find a collection of cheat sheets useful to R developers. Visit the devcheatsheet homepage to inspect cheat sheets and quick reference card for other programming languages and applications.

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R Cheat Sheets and more

July 21, 2010
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R Cheat Sheets and more

Here you can find a collection of cheat sheets useful to R developers. Visit the devcheatsheet homepage to inspect cheat sheets and quick reference card for other programming languages and applications.

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Reminder: Launch Party for Inside-R.org tonight

July 21, 2010
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If you're in the DC area (attending useR!2010, perhaps) this evening, Revolution Analytics (in conjunction with the DC Area R User Group) is hosting a party to celebrate the launch of Inside-R.org at the Crowne Plaza in Rockville at 8PM. Come along for drinks and food, mingle with other R users, hear about the new community site for R,...

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Matrix scatterplot of the Airquality data using lattice

July 20, 2010
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Matrix scatterplot of the Airquality data using lattice

In this post we will build on the last one, and create a matrix scatterplot. The package lattice allows for some really excellent graphics. In case you haven’t already seen it I recommend the R Graph Gallery for some examples of what it can do – browse the graphics by package used to create them.

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Getting going – importing data and plotting a simple graphic

July 20, 2010
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Getting going – importing data and plotting a simple graphic

The most difficult part of the learning curve in R is often getting going – many datasets are pre-installed in the packages and organised, so it is difficult to see how you to import your own data into R.  This post takes you step by step through the process of making a table from a

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New R User Group in Slovenia

July 20, 2010
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The new R User Group in Ljubljana, Slovenia is giving the Sydney group a run for the money when it comes to the best user group name. It's called Anonymous Rcoholics -- great name! You can join the group at the link below. Discussions are in English and Slovene. Google Groups: Anonymous Rcoholics

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userR! 2010 Videos to be Hosted at Rchive

July 20, 2010
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Today, I am packing up the car and heading south to my old home, Washington, DC, for the useR! 2010 conference, which is being held at the National Institute of Standards and Technology. Incidentally, where I was an intern in the Information Technology Lab during college. If you are not able to make the trip to

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Analysing the ISMB 2010 meeting using R

July 20, 2010
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Analysing the ISMB 2010 meeting using R

The colossus of bioinformatics meetings, ISMB, convened in Boston this year from July 9 – 13. As in recent years, the meeting was covered online at its website, FriendFeed and Twitter. I thought it would be fun to run a quick analysis of activity at the FriendFeed room using R. 1. Fetch the data We

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The wonderful world of vim

July 20, 2010
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The wonderful world of vim

When searching for a way to recover control carriage return symbols ^M into genuine ones (under vim), I found this handy page of vim tips. And then saw that the enthusiastic author had even a blog about vim! Obviously, this post will be meaningless for all readers not aware of the joys of the vim

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R: Clash of the cannon cycles

July 19, 2010
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R: Clash of the cannon cycles

Imagine a unit square. Every side has length 1, perfectly square. Now imagine this square was really a fence, and you picked two spots at random along the fence, with uniform probability over the length of the fence. At each of these two locations, set down a special kind of cannon. Just like the light

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Indian state population plot

July 19, 2010
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Indian state population plot

Here's a quick R plot of population in Indian states and the breakdown by the religion people practice. The data was obtained from this Indian government site. I'm looking for other state-level data to overlay on this to find interesting patterns e.g....

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Analyze Online R User Conference Data

July 19, 2010
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Analyze Online R User Conference Data

The R User Conference 2010 will be underway shortly - and what better way to commemorate the event than to  blast out some R code related to the conference?  HTML tables on websites for the past three years list participants an...

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R Beginner’s Guide Book Update 7/19/2010

July 19, 2010
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R Beginner’s Guide Book Update 7/19/2010

Update: Statistical Analysis with R is now available!I am excited to announce that I have submitted the entire first draft of my R Beginner's Guide book, which is to be published through Packt. The tenth and final chapter was submitted a full month ahe...

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R Beginner’s Guide Book Update 7/19/2010

July 19, 2010
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R Beginner’s Guide Book Update 7/19/2010

Update: Statistical Analysis with R is now available!I am excited to announce that I have submitted the entire first draft of my R Beginner's Guide book, which is to be published through Packt. The tenth and final chapter was submitted a full month ahe...

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Welcome to Gosset’s student

July 19, 2010
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Welcome to Gosset’s student

Welcome to Gosset’s student, a blog about statistics, with a focus on using R.  We’re all learning R, as it’s constantly being improved.  The blog will aim for brevity, and a focussed approach to getting some stats done, rather than elegance of code.  Discussions which show how to replicate the result in a more elegant fashion, or

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Creating a Presentation with LaTeX Beamer – Boxes

July 19, 2010
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Creating a Presentation with LaTeX Beamer – Boxes

We can add coloured boxes with text or mathematics into a LaTeX beamer presentation which is particularly useful if we have definitions, theorem or computer code to highlight this information that may not be so accessible within a paragraph of text. Fast Tube by Casper The easiest way to create a box is to use the various

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New StackOverflow site for Statistics

July 19, 2010
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Since launching StackOverflow.com as a Q&A forum for programmers, the StackExchange network is now launching about three new sites a week on topics as specialized as cooking, jobs, and many many more. There's a well-defined, community-oriented process for setting up a new site: first it must be proposed, and then enough potential users must commit to the site and...

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Using R for Data Management, Statistical Analysis and Graphics soon to start shipping

July 19, 2010
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Using R for Data Management, Statistical Analysis and Graphics soon to start shipping

Our newest book, Using R for Data Management, Statistical Analysis and Graphics, is anticipated to soon start shipping from Amazon, CRC Press, and other fine retailers. The book complements our existing SAS and R book, particularly for users less inte...

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Flexmix taks long time…

July 19, 2010
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Flexmix taks long time…

I am running a mixture logit model on a sample of 10,000 cases. The model takes a long time (3-4 hours) to run, which makes it nearly impossible to try different specifications and such. It probably makes sense to use a subsample for exploratory analys...

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Npmlreg and Flexmix

July 18, 2010
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Npmlreg and Flexmix

In my attempt to estimate a mixture regression model for the long-term impact of prenatal famine exposure, I compared results obtained from NPMLREG and Flexmix using the "rainfall" data set came with the package "forward" and was able to achieve identi...

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Join the Statistical analysis Q&A beta

July 18, 2010
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Join the Statistical analysis Q&A beta

Statistical Analysis Q&A is a web page dedicated to exchange questions, answers and ideas primarily on statistics.

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Cherry Picking to Generalize ~ retrospective meta-power analysis using Cohen’s f^2 of NASA temp + visualization

July 17, 2010
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Cherry Picking to Generalize ~ retrospective meta-power analysis using Cohen’s f^2 of NASA temp + visualization

Previously, I plotted a grid of NASA GISS global temps in ggplot2 to show general trends by the brute force method. Here, I will again use the brute force method to do a simple power analysis on a portion of the data (data here). The general aim is to figure out what the minimum sample

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Latent variable analysis package for R

July 17, 2010
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Latent variable analysis package for R

This is another R package for latent variable analysis. I hope it can soon include multilevel and mixture modeling capacity. Another promising package is OpenMx, which is also under active development and very promising. At this moment, OpenMx seems to...

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What (Search Engines Think) People Want

July 17, 2010
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What (Search Engines Think) People Want

R O How G8 U R!Hey, R U there? Having used the R language for awhile now, I would like to let you know that R works - in fact R works really well. If you keep up with R news this should be no surprise...this is, after all...an r blog! R and R alone c...

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CoRe in CiRM [end]

July 17, 2010
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CoRe in CiRM [end]

Back home after those two weeks in CiRM for our “research in pair” invitation to work on the new edition of Bayesian Core, I am very grateful for the support we received from CiRM and through it from SMF and CNRS. Being “locked” away in such a remote place brought a considerable increase in concentration

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Time Series Regression of Temperature Anomaly Data: 1 – Don’t Use OLS

July 17, 2010
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Time Series Regression of Temperature Anomaly Data: 1 – Don’t Use OLS

Phil Jones Statement (February , 2010) Phil  Jones of the  Climate Research Unit (CRU) responded to a series of questions from the BBC in early February, 2010 (link). Question B dealt with global warming trends in the 1995 – 2009 … Continue r...

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Distorting the Electoral Connection? Partisan Representation in Confirmation Politics

July 17, 2010
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John Kastellec, Jeff Lax, and Justin Phillips write: Do senators respond to the preferences of their states' median voters or only to the preferences of their co-partisans? We study responsiveness using roll call votes on te...

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More StackExchange sites

July 16, 2010
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More StackExchange sites

The StackExchange site on Statistical Analysis is about to go into private beta testing. This is your last chance to commit if you want to be part of the private beta testing. Don’t worry if you miss out — it will only be a week before it is then open to the public. There is

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