Posts Tagged ‘ r-project ’

Simple R Screen Scraping Example

February 18, 2011
By

by Earl F. Glynn, Kansas Watchdog The goal of this exercise is to show how to “screen scrape” data from an online web page using R. Additional articles will extend this example to scrape data from 105 Kansas county pages to form a statewide...

Read more »

Listening for trends in US baby names over 130 years

January 25, 2011
By
Listening for trends in US baby names over 130 years

What happens when you mash together R‘s data crunching magic, Festival‘s speech synthesis power, and the audio wonders of the venerable music language Csound? You fall even more in love with free and open-source software, and you start hearing sounds like this: A single beat of the above sound represents the top 1000 baby names

Read more »

A lightweight object browser for R

January 15, 2011
By

Get access to a simple object browser in R so that you can see what variables, data frames, model objects and other junk you have in memory currently. If you don't want to install a full-fledged integrated development environment, this option may be fo...

Read more »

Book Review: Mixed Effects Models and Extensions in Ecology with R

January 14, 2011
By

A brief review of Zuur et al.'s book "Mixed Effects Models and Extensions in Ecology with R".

Read more »

Building a fact-based world view

January 7, 2011
By
Building a fact-based world view

Gapminder is an independent foundation based in Stockholm, Sweden. Its mission is “to debunk devastating myths about the world by offering free access to a fact-based world view“. They provide free online tools, data (more than 400 datasets freely available!) and videos “to better understand the changing world“. The initial development of Gapminder was the

Read more »

Book Review: A Beginner’s Guide to R

December 29, 2010
By

A review of Zuur et al.'s "A Beginner's Guid to R". This book quickly and efficiently introduces you to the peculiarities of the R programming language so that you can soon move on to what you actually want to use R for.

Read more »

Book Review: R in a Nutshell

December 29, 2010
By

A brief review of R in a Nutshell by Joseph Adler. This book continues to serve as a useful reference that sits on my desk next to my computer, waiting to tell me the name of that command I've just forgotten.

Read more »

Joe West vs. Bruce Froemming: A Crude Umpire LHB/RHB Bias Comparison

December 17, 2010
By
Joe West vs. Bruce Froemming: A Crude Umpire LHB/RHB Bias Comparison

In my last two posts, I have tinkered with the 'gam' package to create heat maps for individual umpire strike zones. I went ahead and grabbed Joe West's data (which has a lot more pitches than Bruce Froemming in it, since Froemming's data is only from...

Read more »

New version of solaR (0.21)

December 9, 2010
By
New version of solaR (0.21)

The version 0.21 of the solaR package is now available at CRAN. This package provides a set of calculation methods of solar radiation and performance of photovoltaic systems. The package has been uploaded to CRAN under the GPL-3 license. solaR is now able to calculate from both daily and sub-daily irradiation values. Besides, there are

Read more »

Interesting Posts at Rational Past Time Related to My Previous Strike Zone Map Post

December 8, 2010
By
Interesting Posts at Rational Past Time Related to My Previous Strike Zone Map Post

J-Doug at Rational Pastime has some cool posts looking at umpire strike zones at his site (and cross-posted at Beyond the Boxscore). I was curious about this issue as well with some work I've been doing here in the office (which I'll refrain from talk...

Read more »