AusDM 2015 submission deadline extended to Thursday 30 April

April 20, 2015
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AusDM 2015 submission deadline extended to Thursday 30 April

The 13th Australasian Data Mining Conference (AusDM 2015) Sydney, Australia, 8–9 August 2015 (co-located with SIGKDD’15) URL: http://ausdm15.ausdm.org/ The Australasian Data Mining Conference has established itself as the premier Australasian meeting for both practitioners and researchers in data mining. It … Continue reading →

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plot.xts RFC

April 20, 2015
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We have been working on a new charting engine for xts::plot.xts for the past couple years. It started with Michael Weylandt's work during the 2012 Google Summer of Code,...

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Financial Times tracks unemployment with R

April 20, 2015
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Financial Times tracks unemployment with R

The FT Data section of the Financial Times now has a neat interactive unemployment tracker (free but onerous registration required) that lets you explore employment rates and trends in...

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NEWS of my BioC packages

April 20, 2015
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NEWS of my BioC packages

GOSemSim GOSemSim was first implemented in 2008 and published in Bioinformatics in 2010. It's now a mature package with no bugs found in the past half year. Only vignette and...

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R 3.1 -> 3.2 upgrade notes

April 19, 2015
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R 3.1 -> 3.2 upgrade notes

My machines upgraded from R version 3.1.3 to version 3.2.0 last week, which means that existing code suddenly cannot find packages and so fails. Some notes to myself, possibly...

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R vs QGIS for sustainable transport planning

April 19, 2015
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R vs QGIS for sustainable transport planning

The 23rd iteration of the GIS Research UK conference (#GISRUK) conference was the largest ever. 250 researchers, industry representatives and academics attended from the vibrant geospatial research communities in the UK, Europe and...

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The first NYC R Conference is being held at Work-Bench April 24-25

April 19, 2015
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The first NYC R Conference is being held at Work-Bench April 24-25

The first NYC R Conference is being held at Work-Bench April 24-25.  This is a place for R enthusiasts and data scientists to gather and explore, share and inspire ideas.  It is two...

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Age & Growth with R (Portland, Oregon)

April 19, 2015
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Age & Growth with R (Portland, Oregon)

I (and Northland alum Taylor Stewart) will be leading a continuing education course on using R for typical age and growth analyses as part of the national American Fisheries Society conference...

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Boston Elite Field 2015

April 19, 2015
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Boston Elite Field 2015

Last year I posted about how chances of a non-African country winning the Boston Marathon seemed to be good because of the widening interval of winning times (more recently...

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PK analysis: Theoph again

April 19, 2015
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PK analysis: Theoph again

This week I wanted to repeat the Theoph PK analysis of two weeks ago in Stan. It also suddenly dawned on me. For a non-linear model in classical statistics...

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Bias in Observational Studies – Sensitivity Analysis with R package episensr

April 18, 2015
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Bias in Observational Studies – Sensitivity Analysis with R package episensr

When it’s time to interpret the study results from your observational study, you have to estimate if the effect measure you obtained is the truth, if it’s due to...

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Analysing The Rock ‘n’ Roll Madrid Marathon

April 18, 2015
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Analysing The Rock ‘n’ Roll Madrid Marathon

Nobody’s going to win all the time. On the highway of life you can’t always be in the fast lane (Haruki Murakami, What I Talk About When I Talk...

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How to convert an R data.tree to JSON

April 18, 2015
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I have recently published the data.tree R package to CRAN. It provides OO-style tree building, with standard tree traversal methods. Read the vignette about data.tree features if you are...

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ID3 Classification using data.tree

April 17, 2015
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ID3 Classification using data.tree

Introduction About this vignette What is ID3? Feature Selection Purity and Entropy Information Gain The ID3 algorithm Pseudo code Implementation in R with the data.tree package Training with data...

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Hash Table Performance in R: Part III In Part I of this series, I explained how R hashed…

April 17, 2015
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Hash Table Performance in R: Part III In Part I of this series, I explained how R hashed environments are superior to vectors or lists when you’re in need of...

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The Non-parametric Bootstrap as a Bayesian Model

April 17, 2015
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The Non-parametric Bootstrap as a Bayesian Model

The non-parametric bootstrap was my first love. I was lost in a muddy swamp of zs, ts and ps when I first saw her. Conceptually beautiful, simple to implement,...

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R 3.2.0 is released (+ using the installr package to upgrade in Windows OS)

April 17, 2015
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R 3.2.0 is released (+ using the installr package to upgrade in Windows OS)

R 3.2.0 (codename “Full of Ingredients”) was released yesterday. You can get the latest binaries version from here. (or the .tar.gz source code from here). The full list of new features and bug fixes...

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It’s a Batsman’s World (Cup)

April 17, 2015
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It’s a Batsman’s World (Cup)

The 2015 Cricket World Cup rewrote the record books in dramatic fashion. Amidst the usual insanity that surrounds this event, there were some amazingly good - and bad - performances. Batting-wise,...

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The Intersection of “Data Capital” and Advanced Analytics

April 17, 2015
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We’ve heard about the Three Laws of Data Capital from Paul Sonderegger at Oracle: data comes from activity, data tends to make more data, and platforms tend to...

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R 3.2.0 released

April 17, 2015
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The R Core Team announced yesterday that the latest update to R, R 3.2.0 (codename: "Full of Ingredients") is now available. As of this writing the source bundle is...

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R User Group Meetings this week in the Bay Area and around the world

April 16, 2015
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R User Group Meetings this week in the Bay Area and around the world

by Joseph Rickert Tracking R user group meetings is a good way to stay informed about what's happening in the R world. On Tuesday the Bay Area useR Group...

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Now you can start every R tutorial for free @DataCamp

April 16, 2015
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Now you can start every R tutorial for free @DataCamp

Want to learn more on topics such as R programming, dplyr, data.table, ggvis, and R Markdown? You can now start every DataCamp course for free, and discover how fun it...

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Statistics journals network

April 16, 2015
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Statistics journals network

Xian blogged recently on the incoming RSS read paper: Statistical Modelling of Citation Exchange Between Statistics Journals, by Cristiano Varin, Manuela Cattelan and David Firth. Following the last JRSS B read paper by...

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Knitr with Bio7

April 16, 2015
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16.04.2015 In Bio7 it is possible to write a documentation in knitr. A simple visual and textual HTML editor (based on JavaFX) and an embedded Latex editor (based on...

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Python and R: Basic Sampling Problem

April 16, 2015
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In this post, I would like to share a simple problem about sampling analysis. And I will demonstrate how to solve this using Python and R. The first...

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Drawing rarefaction curves with custom colours

April 16, 2015
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Drawing rarefaction curves with custom colours

I was sent an email this week by a vegan user who wanted to draw rarefaction curves using rarecurve() but with different colours for each curve. The solution to...

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Scraping Web Pages With R

April 15, 2015
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Scraping Web Pages With R

One of the things I tend to avoid doing in R, partly because there are better tools elsewhere, is screenscraping. With the release of the new rvest package, I...

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Recommending Recommender Systems When Preferences Are Not Driven By Simple Features

April 15, 2015
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Recommending Recommender Systems When Preferences Are Not Driven By Simple Features

Why does lifting out a slice make the pizza appear more appealing?We can begin our discussion with the ultimate feature bundle - pizza toppings. Technically, a menu would only...

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New Packages for Reading Data into R

April 15, 2015
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New Packages for Reading Data into R

Hadley Wicham has announced two new package for reading external data into R that will likely be of great interest to fisheries scientists. readr — Several new functions that...

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