These are my links for February 12th from 15:49 to 15:54:
- Comparison of data analysis packages: R, Matlab, SciPy, Excel, SAS, SPSS, Stata – Brendan O’Connor’s Blog – Lukas and I were trying to write a succinct comparison of the most popular packages that are typically used for data analysis. I think most people choose one based on what people around them use or what they learn in school, so I’ve found it hard to find comparative information. I’m posting the table here in hopes of useful comments.
- Thin Film Turns Any Surface Into a Touchscreen | Gadget Lab | Wired.com – Turning your monitor into a touchscreen could some day be as simple as peel … and stick.
Displax, a Portugal-based company, promises to turn any surface — flat or curved — into a touch-sensitive display. The company is offering a thinner-than-paper polymer film that can be stuck on glass, plastic or wood to turn it into an interactive input device.
- Girl Genius Online Comics! – Girl Genius is an ongoing adventure story in which the characters grow, change, run around the landscape quite a bit, and occasionally even die. Because of this, we recommend that new readers start the Girl Genius story from the very beginning. Trust us, it makes more sense that way. The good news is that the entire archive is now available for online reading!
- Power, Effect Sizes, Confidence Intervals, & Scientific Integrity – Explains use of statistical power, effect sizes, confidence intervals in applied social science research, and addresses the issue of publication bias and scientific integrity.
These are my links for February 12th from 15:07 to 15:48:
- Revolutions: How to combine Google maps and data in R – Every good artist needs a canvas, and when it comes to displaying geographic data placing those data in context — on a map — makes all the difference. A new package for R from Markus Loecher, RgoogleMaps, allows you to download a street or satellite map from Google simply by specifying the bounding latitude/longitude coordinates. (You need to sign up for a free Google API key first, though.) You can then overlay data from objects in R, using tools provided to convert to the map-based coordinate system. Here’s an example from the package vignette overlaying the locations of faults (provided as data in the geomapdata package) on a satellite map:
- Data munging with SQL and R.pdf (application/pdf Object) – …while it is possible to shoe-horn a one-to-one mapping of SQL clauses with R functions, R generally has better ways of going about things. In the example that we are about to walk through, experienced R users will think of more R-esque ways of doing things, but the goal here is to get as close to one-to-one with methodology and output.
- VCASMO – Web Development with R – Presentations given at the Bay Area useR Group on January 10, 2010 by Jeroen Ooms, on how to create web applications use R.
- Welcome to Aviary – Photo-editing, logos, web templates, filters, color palettes, screen capture & more at Aviary.com
These are my links for July 1st through July 6th:
- MachineLearning.pdf (application/pdf Object) – Over the past 50 years the study of Machine Learning has grown from the efforts of a handful of computer engineers exploring whether computers could learn to play games, and a field of Statistics that largely ignored computational considerations, to a broad discipline that has produced fundamental statistical-computational theories of learning processes, has designed learning algorithms that are routinely used in commercial systems
for speech recognition, computer vision, and a variety of other tasks, and has spun off an industry in data mining to discover hidden regularities in the growing volumes of online data. This document provides a brief and personal view of the discipline that has emerged as Machine Learning, the fundamental questions it addresses, its relationship to other sciences and society, and where it might be headed
- OJS Customizations | Public Knowledge Project – The Public Knowledge Project is dedicated to improving the scholarly and public quality of research. The partnership brings together faculty members, librarians, and graduate students dedicated to exploring whether and how new technologies can be used to improve the professional and public value of scholarly research. Its research program is investigating the social, economic, and technical issues entailed in the use of online infrastructure and knowledge management strategies to improve both the scholarly quality and public accessibility and coherence of this body of knowledge in a sustainable and globally accessible form. It continues to be an active player in the open access movement, as it provides the leading open source software for journal and conference management and publishing.
- Home | American Statistical Association – The American Statistical Association (ASA), a scientific and educational society founded in Boston in 1839, is the second-oldest, continuously operating professional society in the United States. For 170 years, the ASA has provided its members and the public with up-to-date, useful information about statistics. The ASA has a proud tradition of service to statisticians, quantitative scientists, and users of statistics across a wealth of academic areas and applications.
- Stock Market News, Opinion & Analysis, Investing Ideas — Seeking Alpha – Long and short investing ideas, stock quotes, market news, analysis, blogs, and free conference call transcripts
- Solver Foundation – Solver Foundation’s intrinsic solvers are written in managed code , covering several families of numerical and symbolic programming:
Revised Simplex Linear Programming (Primal and Dual Simplex)
Interior Point Method Linear and Quadratic Programming
Constraint Programming with Exhaustive Tree Search, Local Search, and Metaheuristic Techniques Compact, Quasi-Newton (L-BFGS), Unconstrained Nonlinear Programming
Mixed Integer Programming
- TDWI: Data Warehousing Education & Solutions | Data Warehouse Management | Business Intelligence | BI/DW – TDWI (The Data Warehousing Institute™) provides education, training, certification, news, and research for executives and information technology (IT) professionals worldwide.
- Open Source Enterprise Content Management System (CMS) by Alfresco – * Freely downloadable open source CMS
* Supported by an active community of developers
* Ideal for developers and highly technical enthusiasts
These are my links for June 19th through June 21st:
- Electronic Frontier Foundation | Defending Freedom in the Digital World – From the Internet to the iPod, technologies are transforming our society and empowering us as speakers, citizens, creators, and consumers. When our freedoms in the networked world come under attack, the Electronic Frontier Foundation (EFF) is the first line of defense. EFF broke new ground when it was founded in 1990 — well before the Internet was on most people's radar — and continues to confront cutting-edge issues defending free speech, privacy, innovation, and consumer rights today. From the beginning, EFF has championed the public interest in every critical battle affecting digital rights.
- Public Library of Science – The Public Library of Science (PLoS) is a nonprofit organization of scientists and physicians committed to making the world's scientific and medical literature a public resource.
- The R Project for Statistical Computing – R is a language and environment for statistical computing and graphics. It is a GNU project which is similar to the S language and environment which was developed at Bell Laboratories (formerly AT&T, now Lucent Technologies) by John Chambers and colleagues. R can be considered as a different implementation of S. There are some important differences, but much code written for S runs unaltered under R.
R provides a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering, …) and graphical techniques, and is highly extensible. The S language is often the vehicle of choice for research in statistical methodology, and R provides an Open Source route to participation in that activity.
- Google Scholar – Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: peer-reviewed papers, theses, books, abstracts and articles, from academic publishers, professional societies, preprint repositories, universities and other scholarly organizations. Google Scholar helps you identify the most relevant research across the world of scholarly research.
- Google Trends – With Google Trends, you can compare the world’s interest in your favorite topics. Enter up to five topics and see how often they’ve been searched on Google over time. Google Trends also shows how frequently your topics have appeared in Google News stories, and in which geographic regions people have searched for them most.
- Google Insights for Search – With Google Insights for Search, you can compare search volume patterns across specific regions, categories, time frames and properties
- Google Squared – Google Squared takes a category and creates a starter 'square' of information, automatically fetching and organizing facts from across the web.
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