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Amazon's EC2 platform provides a convenient environment for rapidly procuring computational resources in the cloud. As a Statistician, my interest is specifically in statistical computation with R and the advent of RStudio Server has made it a hand-in-glove fit with the cloud. To get started with the Amazon cloud, you must first signup for an AWS account if you don't already have one. To use the AMIs described on this page, you simply click your chosen AMI ID which will take you through to the Amazon web interface and preselect the correct region and AMI. Simply ensure that your 'security group' settings allow incoming HTTP (port 80) traffic and then copy-and-paste the 'Public DNS' for your running instance to a web browser address bar to bring up the login page. If you want to run a server in the Amazon cloud, you have to select what system you are going to bootup.
RStudio Server Amazon Machine Image (AMI) - Louis Aslett
E-mail : lafaye@dms.umontreal.ca Cette adresse email est protégée contre les robots des spammeurs, vous devez activer Javascript pour la voir. Jury: M. Bilodeau (Directeur, Montréal), R. Cléroux (Président, Montréal), G. Ducharme (Directeur, Montpellier), Y. Escoufier (Montpellier II), J.
Curriculum Vitae (mis à jour le: 25/01/2011)
Survey analysis in R
This is the homepage for the "survey" package, which provides facilities in R for analyzing data from complex surveys. The current version is 3.28. A much earlier version (2.2) was published in Journal of Statistical Software
Statistics with R
Warning Here are the notes I took while discovering and using the statistical environment R. However, I do not claim any competence in the domains I tackle: I hope you will find those notes useful, but keep you eyes open -- errors and bad advice are still lurking in those pages...
La Presse, articles : La Presse 20 décembre, 1999 : Pratte, A. Les prévisions pour l’an 2000, aussi bien tirer à pile ou face, Fellegi, Y. P., La relativité et l’absolu, les seuils de faible revenu...5 février 2000, Des mythes s’effondrent au sujet du travail autonome.
Claire Durand - Enseignement - Méthodes quantitatives
Outils.Stat a été développé dans le but de proposer une interface permettant l'utilisation de R depuis Microsoft Excel(c). Il repose sur les développements de R, Rexcel et RCom. Conçu à l'origine pour offrir aux étudiants en psychologie un outil simple et gratuit, il offre également des possibilités susceptibles d'intéresser les enseignants chercheurs.
Outils.Stat - Module Excel pour R
Naomi Robbins, a consultant and seminar leader who specializes in the graphical display of data, offers training on the effective presentation of data. She also reviews documents and presentations for clients. She is the author of Creating More Effective Graphs . Three common challenges statisticians and others face when preparing data for presentation include poor options and defaults in many software packages used for creating graphs, managers and colleagues who are socialized to expect figures that attract attention, and poor instructions from conference organizers. This article addresses each of these challenges and offers some tips for dealing with them.
Visualizing Data: Challenges to Presentation of Quality Graphics—and Solutions | Amstat News
Microsoft Excel Spreadsheets We have created the following spreadsheets to assist in statistical calculations. Each spreadsheet is "protected" so that it will only let you type in certain cells so that you don't accidentally overwrite any important formulas.
Microsoft Excel Spreadsheets
Graphics, Traditional - r4stats.com
So far we have been plotting frequencies. An advantage barplot() has over plot() is that you can get the height of bars to represent any measure you like. Below I use tapply() to get the means of q1 by gender, store it in myMeans and then plot those means. We can get means broken down by both gender and workshop by including both of them on the tapply() call.
R emoval of non-essential items The more clutter you add to a chart (gradient backgrounds, full bodied axis lines, labels etc) the harder the chart will be to read. They also have severe printing limitations.
AJP Excel Information - Dashboards
D3 allows you to bind arbitrary data to a Document Object Model (DOM), and then apply data-driven transformations to the document. As a trivial example, you can use D3 to generate a basic HTML table from an array of numbers. Or, use the same data to create an interactive SVG bar chart with smooth transitions and interaction.
d3.js
ggplot. had.co.nz
ggplot2 is a plotting system for R, based on the grammar of graphics, which tries to take the good parts of base and lattice graphics and none of the bad parts. It takes care of many of the fiddly details that make plotting a hassle (like drawing legends) as well as providing a powerful model of graphics that makes it easy to produce complex multi-layered graphics. You are welcome to ask ggplot2 questions on R-help, but if you'd like to participate in a more focussed mailing list, please sign up for the ggplot2 mailing list: ggplot2: Elegant Graphics for Data Analysis is now available on amazon.com.had.co.nz
This is the website of Hadley Wickham. I'm an Assistant Professor of Statistics at Rice University , interested in interactive and dynamic graphics , in developing practical tools for data analysis, and in gaining better understanding of complex statistical models through visualisation . In July 2008, I completed my PhD in statistics at Iowa State University with Di Cook and Heike Hofmann .StatSpss