June 2015

Useful tutorials

June 30, 2015 | Rob J Hyndman

There are some tools that I use regularly, and I would like my research students and post-docs to learn them too. Here are some great online tutorials that might help. ggplot tutorial from Winston Chang Writing an R package from Karl Broman Rmarkdown from RStudio Shiny from RStudio git/github ... [Read more...]

Notes from the Kölner R meeting, 26 June 2015

June 30, 2015 | Markus Gesmann

Last Friday the Cologne R user group came together for the 14th time, and for the first time we met at Startplatz, a start-up incubator venue. The venue was excellent, not only did they provide us with a much larger room, but also with the whole infrastructure, including table-football and ... [Read more...]

Graphical presentation of data, best practices

June 30, 2015 | jyothi

Show the data, don’t conceal them was the first article from a series of articles published in the British Journal of Pharmacology that deals with the best practices to be followed in statistical reporting. The current set of articles in this series can be obtained at http://onlinelibrary.wiley.... [Read more...]

Announcing the R Consortium

June 30, 2015 | David Smith

The R community has grown explosively over the past few years, both in terms of the number of R users and the number of companies who rely on R as their data science platform. To serve the needs of this rapidly growing community, and to continue the success of the ... [Read more...]

Contours and Networks with epimap and rleafmap

June 30, 2015 | franzk

In February, I participated in a hackaton organized by Thibaut Jombart at Imperial College, London, to work on visualization tools for outbreak data. This was a great time spent with great people! Thanks again, Thibaut, for organizing. I took part … Lire la suite → [Read more...]

Exploring SparkR

June 29, 2015 | Alvaro "Blag" Tejada Galindo

A colleague from work, asked me to investigate about Spark and R. So the most obvious thing to was to investigate about SparkR -;)I installed Scala, Hadoop, Spark and SparkR...not sure Hadoop is needed for this...but I wanted to have the full picture -:)Anyway...I came ... [Read more...]

Hot news detection using Wikipedia

June 29, 2015 | Hamed

Wikipedia is, indeed, one of the largest free access crowdsourcing [1] sources of information in today's world. Every day, thousands of people land on its pages to get information about different topics. Moreover, many machine learning algorithms (including text mining, semantic web, etc.) get their input from Wikipedia; for example, Google’...
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Data Warehousing with R

June 29, 2015 | Jan Górecki - R

Under this link you can find today's slides from the Cardiff R User Group meeting. On the slides you may find interesting packages from the Data Warehousing / ETL perspective. Including few examples and a lot of links to packages repositories. Slides are fully reproducible, including connection via DBI, RJDBC and ... [Read more...]

Generalized Linear Mixed Models: the FAQ

June 29, 2015 | David Smith

Mixed models (which include random effects, essentially parameters drawn from a random distribution) are tricky beasts. Throw non-Normal distributions into the mix for Generalized Linear Mixed Models (GLMMs), or go non-linear, and things get trickier still. It was a new field of Statistics when I was working on the Oswald ... [Read more...]

Flow and Dynamics in NBA games – Part III

June 28, 2015 | StatOfMind

In part I and II of this post series on NBA game dynamics, I explored both the average score differential and proportion of time spent in the lead for each NBA team. Interestingly, this proved to not be a very reliable proxy for overall performance and number of wins accrued ... [Read more...]

dendextend version 1.0.1 + useR!2015 presentation

June 28, 2015 | Tal Galili

My R package dendextend (version 1.0.1) is now on CRAN! The dendextend package Offers a set of functions for extending dendrogram objects in R, letting you visualize and compare trees of hierarchical clusterings. With it you can (1) Adjust a tree’s graphical parameters – the color, size, type, etc of its branches, ...
[Read more...]
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