2634 search results for "Map"

School’s out: Building Interactive R Apps with shiny, googleVis in our R Academy

October 24, 2013
By
School’s out: Building Interactive R Apps with shiny, googleVis in our R Academy

In our R Academy course “Interactive Datavisualization with R” participants learned today how to build interactive graphics in R using the shiny and the googleVis package. Rstudios shiny package is a great way to build an Application for interactive visualizations out of R. For our example App we recreated Hans Rosslings (Gapminder) Visualization which puts

Read more »

NESSIS 2013: The future of sports statistics is here!

October 24, 2013
By
NESSIS 2013: The future of sports statistics is here!

by Joseph Rickert We have been following sports statistics regularly on the Revolutions Blog with quite a few sports related posts this year. In one post I did back in April about the Latham R package for baseball statistics I speculated on how baseball was poised to move from Moneyball style predictive analytics to real-time descriptive stats by showing...

Read more »

The joy of data analysis

October 24, 2013
By
The joy of data analysis

Music and snow. Poke my eyes out Perhaps your immediate response is: “I’d rather poke my eyes out with a burning stick than do data analysis.” There’s a completely different reaction from a lot of people who have experienced data analysis. Music It’s not entirely clear why humans like music so much. Part of it The post The...

Read more »

My experience of learning R – from basic graphs to performance tuning

October 23, 2013
By
My experience of learning R – from basic graphs to performance tuning

BackgroundR as some of you may know is a statistical and graphics programming language (see Wikipedia ) used by academia and recently by IT professionals of our ever growing software industry. There is a sudden demand for Data Scientists, Data Analysts and Statisticians with a background in R among other things data and development related subjects. I have...

Read more »

Time series plots in R

October 23, 2013
By
Time series plots in R

I recently coauthored a couple of papers on trends in environmental data (Curtis & Simpson in press; Monteith et al. in press), which we estimated using GAMs. Both papers included plots like the one shown below wherein we show the estimated trend and associated point-wise 95% confidence interval, plus some other markings. The coloured sections show...

Read more »

An OpenBLAS-based Rblas for Windows 64

October 22, 2013
By
An OpenBLAS-based Rblas for Windows 64

One of the more important pieces of software that powers R is its BLAS, which stands for Basic Linear Algebra Subprograms. This is the suite of programs which, as its name implies, performs basic linear algebra routines such as vector copying, scaling and dot products; linear combinations; and matrix multiplication. It is the engine on Read the full...

Read more »

OA week – A simple use case for programmatic access to PLOS full text

October 21, 2013
By
OA week – A simple use case for programmatic access to PLOS full text

Open access week is here! We love open access, and think it's extremely important to publish in open access journals. One of the many benefits of open access literature is that we likely can use the text of articles in OA journals for many things, including text-mining. What's even more awesome is some OA publishers provide API (application...

Read more »

machine learning [book review, part 2]

October 21, 2013
By
machine learning [book review, part 2]

The chapter (Chap. 3) on Bayesian updating or learning (a most appropriate term) for discrete data is well-done in Machine Learning, a probabilistic perspective if a bit stretched (which is easy with 1000 pages left!). I like the remark (Section 3.5.3) about the log-sum-exp trick. While lengthy, the chapter (Chap. 4) on Gaussian models has

Read more »

Tracking the 2013 Hurricane Season

October 21, 2013
By
Tracking the 2013 Hurricane Season

With it being the end of hurricane season it’s only appropriate to do a brief summary of the activity this year.   It’s been a surprisingly low-key season as far as hurricanes are concerned.  There have been only a few hurricanes and the barometric pressure of any hurricane this season has not even come close

Read more »

machine learning [book review]

October 20, 2013
By
machine learning [book review]

I have to admit the rather embarrassing fact that Machine Learning, A probabilistic perspective by Kevin P. Murphy is the first machine learning book I really read in detail…! It is a massive book with close to 1,100 pages and I thus hesitated taking it with me around, until I grabbed it in my bag

Read more »