iEvoBio 2011 Synopsis

June 22, 2011
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iEvoBio 2011 Synopsis

We just wrapped up the 2011 iEvoBio meeting. It was awesome! If you didn't go this year or last year, definitely think about going next year.Here is a list of the cool projects that were discussed at the meeting (apologies if I left some out):Vistrails...

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Steal This Blog!

June 22, 2011
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Steal This Blog!

I wanted to contribute any content and code I post here to the R Programming Wikibook so I made a slight change to the Creative Commons license on this blog. All the written content is now cc-by-sa and all the code here is still open source BSD. So fee...

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At Least Tim Thomas Won…….

June 22, 2011
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As you can tell from the content on this blog, I am a really big fan of statistical analysis and the NHL.  I haven’t blogged in some time simply because I have been deeply engrossed by the 2011 playoffs, where … Continue reading →

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Hard drive occupation prediction with R – part 3 – Predicting future ranges

Hard drive occupation prediction with R – part 3 – Predicting future ranges

On the second article, we saw how to use a Monte Carlo simulation generate sample of disk space delta for future dates and calculate the distribution probability of zeroing free space in the future.In this article, we will see how we can plot the e...

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Items

June 22, 2011
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Let's define a new pattern!I do a lot of programming for research, and part of what this involves is turning calculations, usually expressed as verbs, into nouns. That is, I need to keep the calculation and all it's intermediate steps around so that I can inspect them.Alas, I am programming in Python most of the time and end up...

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Video: Two R talks from Hadley Wickham

June 22, 2011
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On his recent tour to the Bay Area, Hadley Wickham have two interesting R-related talks, for which video has been made available by Google Tech Talks. At the June Bay Area R User Group meeting, Hadley spoke on the future of interactive data visualization in R. Building on his experiences creating the ggplot2 package (which is still under development...

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REITs for Everybody Now REITs for Nobody Part 3

June 22, 2011
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REITs for Everybody Now REITs for Nobody Part 3

THIS IS NOT INVESTMENT ADVICE.  LISTENING TO ME COULD LOSE LOTS OF MONEY. For some additional insight to my short REITs beliefs presented in REITs for Everybody Now REITs for Nobody Part 2 and REITs for Everybody Might Now Mean REITs for Nobody, I...

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Package RghcnV3

June 22, 2011
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Package RghcnV3

I am down to the last strokes of creating a package for downloading, importing and analyzing GHCN (Global Historical Climate Network0 Version 3.  There  were a few things holding me up, but  I’ve manged to handle all of them except the last one.  Let’s spend a little time looking at the package process so you

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RStudio

June 22, 2011
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If you're a user of the R statistical software environment (and you should be - if you're not, it's the best free lunch in town), then the (fairly) recently released RStudio user interface will undoubtedly interest you. Here's a quote from the description on their website, to give you the flavour:"RStudio brings together everything you need to be...

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sab-R-metrics: Merging Data Sets

June 22, 2011
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I am finally back from Greece and recovered from jet lag. Fortunately, I did not get tear gassed while in Athens, though there were riot police everywhere the whole time we visited. Today, I'm going to start getting my feet wet again with a shorter s...

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A heap of PhD studentships at UCL

June 21, 2011
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A heap of PhD studentships at UCL

Mark Girolami sent me this announcement for six PhD studentships in Statistical Methodology and Its Application at University College London (UCL) that are great opportunities for anyone interested in computational statistics! The studentships are attached to the Department of Statistical Science at University College London, and a subset of them are UCL Impact awards. Impact

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Hurst as Relative Strength

June 21, 2011
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Hurst as Relative Strength

THIS IS NOT INVESTMENT ADVICE AND COULD EASILY RESULT IN SIGNIFICANT LOSSES. As an extension to Testing Hurst with Multiple Indexes and Exploring the Market with Hurst, we also might employ our new Hurst signal as a relative strength determinant. ...

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The R WikiBook

June 21, 2011
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Tal Galili, god bless him, is rounding up R bloggers for an R WikiBookIn support of this book I am announcing all R-related content I post (here and at the old site) to be available under a cc-by-sa license (not that I'd really care if you didn't giv...

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A year of Chicago’s crime, in 30 seconds

June 21, 2011
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Yesterday Brett Goldstein, the Chief Data Officer for the City of Chicago, announced on Twitter the release of Chicago’s crime data for the past year. The data is very detailed, and wonderful resource for criminologist and social scientists alike. I have been playing around with the data a bit, and have produced an animation

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Five things Biologists should know about Statistics

June 21, 2011
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In a thoughtful blog post, Bioinformatician Ewan Birney (Head of Nucleotide Data at the European Bioinformatics Institute) talks about the importance of Statistics to biologists: Biology is really about stats. Indeed, the foundation of much of frequentist statistics - RA Fisher and colleagues - were totally motivated by biological problems. He also cites the "Five statistical things I wished...

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Code: mtable-ext updated

June 21, 2011
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I have fixed a small bug in mtable-ext that prevented asterisks from being printed for negative coefficients in mixed effects models output by lme4. Thanks to Reinhold Kliegl and Martin Elff for pointing out the bug and for providing the … Continue reading →

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Job offer: R-Square is looking for an R Statistician

June 21, 2011
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This is a guest post by Kyle Stokley. ————— My name is Kyle and I am an IT recruiter for R-Square.  I currently have an opening in Durham NC with a fortune 100 company based out of NJ for a Statistician with R-Programming Experience. Job Title: Statistician Qualifications: MS or PhD in statistics with 0-10 years work experience. R...

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R in the Bioinformatics Knowledgeblog

June 21, 2011
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The Knowledge Blog progect is a new, light-weight way of publishing scientific, academic and technical knowledge on the web, across several scientific disciplines. One such discipline is bioinformatics, and the Bioinformatics Knowledgeblog contains useful scientific reference material for bioinformatics, including several resources for R users. There you'll find an R Guide for Complete Beginners, a tutorial on analyzing microarray...

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PLoS journals API from R: "rplos"

June 21, 2011
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PLoS journals API from R: "rplos"

The Public Libraries of Science (PLOS) has an API so that developers can create cool tools to access their data (including full text papers!!).Carl Boettiger at UC Davis and I are working on R functions that use the PLoS API. See our code on Githu...

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Meet cloudnumbers.com at the UseR2011 conference in UK

June 21, 2011
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cloudnumbers.com provides researchers and companies with the resources to perform high performance calculations in the cloud. We currently focus on the well-known open-source statistics program R (http://www.r-project.org). R is a strongly functional language and environment for statistical computing. You can explore data sets, make graphical displays of data, run statistical simulations and much more. This

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ProjectEuler-Problem 46

June 21, 2011
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ProjectEuler-Problem 46

It was proposed by Christian Goldbach that every odd composite number can be written as the sum of a prime and twice a square.9 = 7 + 21215 = 7 + 222Read More: 461 Words Totally

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RGhcnV3 A new package

June 21, 2011
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RGhcnV3   A new package

It’s been a long journey and there are some people to thank for helping me along the way. Steve McIntyre, Ron Broberg, Jeff Id, Ryan ODonnell, RomanM, Nick Stokes, Robert Hijmans, Gabor  Grothendieck, Hadley Wickham, David Winsemius, and countless others on the R Help list. The Package is done. Package: RghcnV3 Type: Package Title: Global

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Statistics.com Review

June 20, 2011
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Disclaimer: All prices and classes are approximate and should be confirmed at www.statistics.com as they can change. A comment from my previous post asked me about the experience I had in taking courses from statistics.com (www.statistics.com). To help...

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Testing Hurst with Multiple Indexes

June 20, 2011
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Testing Hurst with Multiple Indexes

DO NOT TRADE THIS SYSTEM.  YOU VERY EASILY COULD LOSE LARGE AMOUNTS OF MONEY. I am not necessarily recommending the system that I presented in Exploring the Market with Hurst, but I thought it would provide a nice platform to illustrate some backtesti...

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Visualization Meetup at the Googleplex

June 20, 2011
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Visualization Meetup at the Googleplex

Earlier this month we were excited to host a joint meetup with the Bay Area visualization group and the Bay Area R user group at Google’s headquarters in Mountain View.Hadley Wickham from Rice University came and gave a talk on Interactive Graphics in R. Earlier in the day we...

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Population pyramids in R

Some friends asked me about how to built population pyramids with confidence intervals in R. When I did my own probabilistic population projections, I had the same trouble, unfortunately there is no library to do that. So here I share the code I wrote:...

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Calling R lovers and bloggers – to work together on “The R Programming wikibook”

June 20, 2011
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Calling R lovers and bloggers – to work together on “The R Programming wikibook”

This post is a call for both R community members and R-bloggers, to come and help make The R Programming wikibook be amazing. The R Programming wikibook is not just another one of the many free books about statistics/R, it is a community project which aims to create a cross-disciplinary practical guide to the R programming language.  Here is

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Example 8.41: Scatterplot with marginal histograms

June 20, 2011
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Example 8.41: Scatterplot with marginal histograms

The scatterplot is one of the most ubiquitous, and useful graphics. It's also very basic. One of its shortcomings is that it can hide important aspects of the marginal distributions of the two variables. To address this weakness, you can add a histo...

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Today’s Assignment: Assignment

June 20, 2011
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Today’s Assignment: Assignment

A new R user quickly discovers that there are multiple ways to store information into an object -- the technical term for this is assignment. There's = as in:x = c(1,2,3)and there's <- as in:x <- c(1,2,3)R help on assignOps offers this explanati...

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