Calibration. Motion-charts-with-r - Using the Google Visualisation API with R. Simple, scalable parallel computing in R. REvolution Computing has just released three new packages for R to CRAN (under the open-source Apache 2.0 license): foreach, iterators, and doMC.
Together, they provide a simple, scalable parallel computing framework for R that lets you take advantage of your multicore or multiprocessor workstation to program loops that run faster than traditional loops in R. The three packages build on each other to implement a new loop construct for R -- foreach -- where iterations may run in parallel on separate cores or processors. iterators implements the iterator object familiar to users of languages like Java, C# and Python to make it easy to program useful sequences - from all the prime numbers to the columns of a matrix or the rows of an external database. Iterators objects are used as the index variable for the parallel loops. foreach builds on the "iterators" package to introduce a new way of programming loops in R. Install.packages("foreach")install.packages("doMC") Gapminder. As many people are aware Hans Rosling is an enthusiastic swedish academic with a passion for statistics who recently presented the program The Joy of Stats.
Gapminder. Cosm R package. Here we go, an R package with a couple of helpful functions to help you pull your data from the Cosm API: feed_detail() returns JSON-like data as nested lists.feed_history() returns a zoo object representing selected datastreams.
Why zoo objects? Hadley Wickham (hadleywickham) sur Twitter. Yihui Xie (xieyihui) sur Twitter. Homepage of Yihui XIE. Modeling Traffic-Related Air Pollution with Rcaline. Rcaline is an R package that provides an interface to a Fortran implementation of the CALINE3 model.
This steady-state, Gaussian dispersion model, and its cousins CAL3QHC and CAL3QHCR, are used to predict aerosol concentrations downwind from mobile emission sources such as highway traffic. (If you know how I can get the source for CALINE4, email me!) With suitable input data, Rcaline can be used to generate maps of traffic-related air pollutants such as carbon monoxide or particulate matter. Check out the demo and package documentation: INSTALLATION.
Source: Rcaline_1.0-1.tar.gz Download the source, then run: install.packages(file.choose(), type="source", repos=NULL) An Sweave Demo. University of Minnesota, Twin Cities School of Statistics Charlie's Home Page This web page provides an illustration or three of Sweave, which is literate programming for R or (a newer buzzword) a package for reproducible research.
Sweave is an R function now available by default. Its author is Friedrich Leisch and its web site is just a directory, not a web page wherein one can find the manual, the FAQ, and three papers about it. Contents Literate Programming The term literate programming was coined by Donald Knuth, one of the true geniuses of computing, the author/inventor of TeX, among other things. The basic idea is that. Knitr: Elegant, flexible and fast dynamic report generation with R. Overview The knitr package was designed to be a transparent engine for dynamic report generation with R, solve some long-standing problems in Sweave, and combine features in other add-on packages into one package (knitr ≈ Sweave + cacheSweave + pgfSweave + weaver + animation::saveLatex + R2HTML::RweaveHTML + highlight::HighlightWeaveLatex + 0.2 * brew + 0.1 * SweaveListingUtils + more).
This package is developed on GitHub; for installation instructions and FAQ’s, see README. This website serves as the full documentation of knitr, and you can find the main manual, the graphics manual and other demos / examples here. Latex Allergy Cured by knitr. Interactive HTML presentation with R, googleVis, knitr, pandoc and slidy. Tonight I will give a talk at the Cambridge R user group about googleVis.
Following my good experience with knitr and RStudio to create interactive reports, I thought that I should try to create the slides in the same way as well. Christopher Gandrud's recent post reminded me of deck.js, a JavaScript library for interactive html slides, which I have used in the past, but as Christopher experienced, it is currently not that straightforward to use with R and knitr. Thus, I decided to try slidy in combination with knitr and pandoc. And it worked nicely. Knitr showcase: Examples from other users. EME Systems Environmental Product Index. UCB Ultrasound Personal Locator System. Overview We have developed a personal locator system to detect the presence or absence of persons in an enclosed space.
The system consists of one to five small ultrasound emitting devices (“locators”) and one ultrasound receiving device.
Personalized medicine. Profiles.resumes. AQ reference. Hardware, sensors and related stuff. Gas sensors. Wireless Sensors. DIY - Buy SquidBee Mote from Scratch. Just one week after the fire: e-Health and Distributor Orders already Shipping!!
Read more. <div class="noscript"><div class="noscript-inner"><p><strong>JavaScript seem to be disabled in your browser. </strong></p><p>You must have JavaScript enabled in your browser to utilize the functionality of this website. </p></div></div> Urban sensor kit - Fab Lab Bcn WIKI. Lipo Rider Pro. Introduction Power your favourite electronic kit with green energy!
The LiPo Rider Pro is a promotion of Lipo Rider.It supply heavier load output(1A peak) than Lipo Rider. The LiPo Rider Pro board allows you ride the solar wave to run your favourite 5V device. Solar Module for Arduino. Solar Charger Shield v2.0b. Introduction The solar charger is a stackable shield to Arduino compatible platforms, enables adaptive battery power and act as energy harvester for in-field charging. You may use various batteries that has the voltage of 2.7V-4.2V to shift up for 5V output, or put on Li-ion battery and solar panel to form an autonomous sensor unit. The maximum current provided by the board can get up to 700mA.
An usb connector is also useful to charge the battery. OneWire Arduino Library, connecting 1-wire devices (DS18S20, etc) to Teensy. OneWire lets you access 1-wire devices made by Maxim/Dallas, such as temperature sensors and ibutton secure memory. For temperature sensors, the DallasTemperature library can be used with this library.
Download: OneWire.zip (Version 2.2) Dallas Temperature Control Library - Miles Burton - Innovative engineering for pretty much anything. From Miles Burton - Innovative engineering for pretty much anything Introduction The DS18B20 is a very small thermometer which can be easily hooked into the Arduino MCU through any digital input! It requires very little in the way of additional support, a couple of resistors and some hookup cables and you're set to go. For more information on the DS18B20 check out [Maxim-IC]. The Library This library is derived from some good work by the Arduino community. DS18B20 and occasional bogus readings.
Arduino 1-Wire Tutorial. This tutorial has been updated to use version 1.0+ of the Arduino software, and compatible libraries. Please download the latest version of the Arduino software at this URL: Fabrication Spaces - DIY projects. Knut: Stay Connected by Amperic. Twine : Listen to your world, talk to the Internet by Supermechanical. NODE: a modular, handheld powerhouse of sensors by George Yu. New Pledge options for Radiation sensor module and Carbon Monoxide module. The radiation sensor module is a PIN diode radiation sensor with adjustable sensitivity levels. Sensordrone: The 6th Sense of Your Smartphone...& Beyond! by Sensorcon. Internet Your Thing by DaisyWorks. Meet the Daisy WiFi: a small, low-power network device with sensors and controls. The Daisy enables you to connect sensors and controls to the Internet for monitoring and controlling your world. Mobile Environmental Sensing System Across Grid Environments.
Mobile Environmental Sensing System Across Grid Environments Navigation Home Downloads This page contains links to various items of presentation material developed for the Project Demonstration day in London on 30th June 2009. For additional information, or to answer any queries you may have, please contact Dr Robin North. Open Source Ecology. Main Page.