RcppArmadillo 0.5.300.4.0

August 4, 2015
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RcppArmadillo 0.5.300.4.0

A new Armadillo release 5.300.4 was prepared by Conrad the other day, and we prepared a new corresponding RcppArmadillo release 0.5.300.4.0 which is now on CRAN and in way into Debian. Armadillo is a powerful and expressive C++ template library for linear algebra aiming towards a good balance between speed...

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Achieve Charting Zen With TauCharts

August 4, 2015
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There was some chatter on the twitters this week about a relatively new D3-based charting library called TauCharts (also @taucharts). The API looked pretty clean and robust, so I...

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A Short Introduction to Bioconductor

August 4, 2015
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A Short Introduction to Bioconductor

by Peter Hickey (@PeteHaitch) One of the keys to R's success as a software environment for data analysis is the availability of user-contributed packages. Most useRs will be familiar...

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dendextend: a package for visualizing, adjusting, and comparing dendrograms (based on a paper from “bioinformatics”)

August 4, 2015
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dendextend: a package for visualizing, adjusting, and comparing dendrograms (based on a paper from “bioinformatics”)

This post on the dendextend package is based on my recent paper from the journal bioinformatics (a link to a stable DOI). The paper was published just last week, and since it is...

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Getting Started: Adobe Analytics Clickstream Data Feed

August 4, 2015
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Getting Started: Adobe Analytics Clickstream Data Feed

“Well, first you need a TMS and a three-tiered data layer, then some jQuery with a node backend to inject customer data into the page asynchronously if you want...

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New package "dplyrr" – Utilities for comfortable use of dplyr with databases

August 4, 2015
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1. Overview dplyr is the most powerful package for data handling in R, and it has also the ability of working with databases(See Vignette). But the functionalities...

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Microsoft Launches Its First Free Online R Course on edX

August 4, 2015
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Microsoft Launches Its First Free Online R Course on edX

Today, Microsoft and DataCamp launched an exciting new course on edX.org covering the basics of the statistical programming language R. This four week course is free for everyone, and...

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Generalised Linear Models in R

August 4, 2015
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Generalised Linear Models in R

Linear models are the bread and butter of statistics, but there is a lot more to it than taking a ruler and drawing a line through a couple of...

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Visualizing population density

August 3, 2015
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Visualizing population density

MANHATTAN IS MORE EXTREME THAN YOU THINK IN POPULATION DENSITY Slinging numbers around all day, one adage we believe is that most surprising statistics are wrong. But here’s one...

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Accept payments in shiny app

August 3, 2015
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Accept payments in shiny app

Have you ever think about accepting payments in your shiny app? Probably not, but now you can start ;) Shiny apps are usually single task, not very heavy websites. It may...

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JSM 2015 | Check out these talks and visit RStudio!

August 3, 2015
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JSM 2015 | Check out these talks and visit RStudio!

The Joint Statistics Meetings starting August 8 is the biggest meetup for statisticians in the world. Navigating the sheer quantity of interesting talks is challenging – there can be up to 50 sessions going on...

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11 new R jobs (from R-users.com ; 2015-08-04)

August 3, 2015
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11 new R jobs (from R-users.com ; 2015-08-04)

This is the bimonthly post (for 2015-08-04) for new R Jobs from R-users.com. Employers: visit this link to post a new R job to the R community (it’s free and quick). Job seekers: please follow the links below to learn...

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Wikipedia and the Fashion Weeks: A Look at Usage Patterns

August 3, 2015
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Wikipedia and the Fashion Weeks: A Look at Usage Patterns

Unlike many of the entries on Wikipedia relating to statistics or computer science, fashion related topics have not not been thoroughly documented. For example, the entries on Martin Margiela and Rei...

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Watch 18 years of R development in 15 minutes

August 3, 2015
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Watch 18 years of R development in 15 minutes

R is an incredibly active software project. Since the first code was checked into Subversion back on 18 September 1997, there have been more than 100,000 updates to the...

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Multivariate Techniques in Python: EcoPy Alpha Launch!

August 3, 2015
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Multivariate Techniques in Python: EcoPy Alpha Launch!

I’m announcing the alpha launch of EcoPy: Ecological Data Analysis in Python. EcoPy is a Python module that contains a number of  techniques (PCA, CA, CCorA, nMDS, MDS, RDA,...

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Sensemaking in R: A Plenitude of Models Makes for Good Storytelling

August 3, 2015
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Sensemaking in R: A Plenitude of Models Makes for Good Storytelling

"Sensemaking is a motivated, continuous effort to understand connections (which can be among people, places, and events) in order to anticipate their trajectories and act effectively."- Gary Klein, Brian...

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Feature Engineering versus Feature Extraction: Game On!

August 3, 2015
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Feature Engineering versus Feature Extraction: Game On!

"Feature engineering" is a fancy term for making sure that your predictors are encoded in the model in a manner that makes it as easy as possible for the...

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Going Bananas #2: A Needle In A Haystack

August 3, 2015
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Going Bananas #2: A Needle In A Haystack

Now I’m gonna tell my momma that I’m a traveller, I’m gonna follow the sun (The Sun, Parov Stelar) Inspired by this book I read recently, I decided to...

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Ternary Interpolation / Smoothing

August 3, 2015
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Ternary Interpolation / Smoothing

For a long time, people have been sending me requests for a suitable smoothing / contouring / interpolation geometry be made available via ggtern, over and above the Kernel...

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Producing a Control Chart in R – An Application in Analytical Chemistry

Producing a Control Chart in R – An Application in Analytical Chemistry

Introduction Many processes in chemistry, especially in synthesis, require attaining a certain target value for a property of interest.  For example, when synthesizing drug capsules that contain a medicine, a...

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Interview with a Data Scientist (Hadley Wickham)

August 2, 2015
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Interview with a Data Scientist (Hadley Wickham)

Originally posted on Models are illuminating and wrong:I recently interviewed Hadley Wickham the creator of Ggplot2 and a famous R Stats person. He works for RStudio and his...

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Survival Analysis – 1

August 2, 2015
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I recently was looking for methods to apply to time-to-event data and started exploring Survival Analysis Models. In this post, I'm exploring basic KM estimator which is a nonparametric...

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Two New R Packages – qrencoder & passwordrandom

August 2, 2015
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Two New R Packages – qrencoder & passwordrandom

Believe it or not, there are two questions on @StackOverflowR about how to make QR codes in R. I personally think QR codes are kinda hokey, but...

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Playing with leafletR

August 2, 2015
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Coming back from a bicycle ride in Tarn, I wanted to have a look at the trip. This gave me the opportunity to learn how to use the R...

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Seattle’s Fremont Bridge Bicyclists Again in the News

August 2, 2015
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Seattle’s Fremont Bridge Bicyclists Again in the News

Back in 2013, David Smith had done analysis of bicycle trips across Seattle’s Fremont bridge. More recently, Jake Vanderplas (creator of Python’s very popular Scikit-learn package) wrote a nice...

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[ggtree] annotate phylogenetic tree with local images

August 1, 2015
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[ggtree] annotate phylogenetic tree with local images

In ggtree, we provide a function annotation_image for annotating phylogenetic tree with images. To demonstrate the usage, I created a tree view from a random tree as shown below:

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Streamgraphs in R

July 31, 2015
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Streamgraphs in R

It's not easy to visualize a quantity that varies over time and which is composed of more than two subsegments. Take, for example, this stacked bar chart of religious...

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Rendering LaTeX Math Equations in GitHub Markdown

July 31, 2015
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Rendering LaTeX Math Equations in GitHub Markdown

The Problem: GitHub README.md won't render LaTeX I have many times wondered about getting LaTeX math to render in a README file on GitHub. Apparently, many others ( 1,...

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Building a user interface for spatstat

July 30, 2015
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Building a user interface for spatstat

Contents Introduction Get and run it! Roadmap Introduction RStudio developed shiny, an R package that, quoting from their website, “makes it super simple for R users...

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