Stanford Courses Delayed Again

Message from the guys at Palo Alto— Why dont they just make videos using Sal Academy’s help?

We’re sorry to have to tell you that our Machine Learning course will be delayed further. There have naturally been legal and administrative issues to be sorted out in offering Stanford classes freely to the outside world, and it’s just been taking time. We have, however, been able to take advantage of the extra time to debug and improve our course content!

We now expect that the course will start either late in February or early in March. We will let you know as soon as we hear a definite date. We apologize for the lack of communication in recent weeks; we kept hoping we would have a concrete launch date to give you, but that date has kept slipping.

Thanks so much for your patience! We are really sorry for repeatedly making you wait, and for any interference this causes in your schedules. We’re as excited and anxious as you are to get started, and we both look forward to your joining us soon in Machine Learning!

Andrew Ng and the ML Course Staff

Use R for Business- Competition worth $ 20,000 #rstats

All you contest junkies, R lovers and general change the world people, here’s a new contest to use R in a business application

http://www.revolutionanalytics.com/news-events/news-room/2011/revolution-analytics-launches-applications-of-r-in-business-contest.php

REVOLUTION ANALYTICS LAUNCHES “APPLICATIONS OF R IN BUSINESS” CONTEST

$20,000 in Prizes for Users Solving Business Problems with R

 

PALO ALTO, Calif. – September 1, 2011 – Revolution Analytics, the leading commercial provider of R software, services and support, today announced the launch of its “Applications of R in Business” contest to demonstrate real-world uses of applying R to business problems. The competition is open to all R users worldwide and submissions will be accepted through October 31. The Grand Prize winner for the best application using R or Revolution R will receive $10,000.

The bonus-prize winner for the best application using features unique to Revolution R Enterprise – such as itsbig-data analytics capabilities or its Web Services API for R – will receive $5,000. A panel of independent judges drawn from the R and business community will select the grand and bonus prize winners. Revolution Analytics will present five honorable mention prize winners each with $1,000.

“We’ve designed this contest to highlight the most interesting use cases of applying R and Revolution R to solving key business problems, such as Big Data,” said Jeff Erhardt, COO of Revolution Analytics. “The ability to process higher-volume datasets will continue to be a critical need and we encourage the submission of applications using large datasets. Our goal is to grow the collection of online materials describing how to use R for business applications so our customers can better leverage Big Analytics to meet their analytical and organizational needs.”

To enter Revolution Analytics’ “Applications of R in Business” competition

Continue reading

RStudio 3- Making R as simple as possible but no simpler

From the nice shiny blog at http://blog.rstudio.org/, a shiny new upgraded software (and I used the Cobalt theme)–this is nice!

awesome coding!!!

 

http://www.rstudio.org/download/

Download RStudio v0.94

Diagram desktop

If you run R on your desktop:

Download RStudio Desktop

OR

Diagram server

If you run R on a Linux server and want to enable users to remotely access RStudio using a web browser:

Download RStudio Server

 

RStudio v0.94 — Release Notes

June 15th, 2011

 

New Features and Enhancements

Source Editor and Console

  • Run code:
    • Run all lines in source file
    • Run to current line
    • Run from current line
    • Redefine current function
    • Re-run previous region
    • Code is now run line-by-line in the console
  • Brace, paren, and quote matching
  • Improved cursor placement after newlines
  • Support for regex find and replace
  • Optional syntax highlighting for console input
  • Press F1 for help on current selection
  • Function navigation / jump to function
  • Column and line number display
  • Manually set/switch document type
  • New themes: Solarized and Solarized Dark

Plots

  • Improved image export:
    • Formats: PNG, JPEG, TIFF, SVG, BMP, Metafile, and Postscript
    • Dynamic resize with preview
    • Option to maintain aspect ratio when resizing
    • Copy to clipboard as bitmap or metafile
  • Improved PDF export:
    • Specify custom sizes
    • Preview before exporting
  • Remove individual plots from history
  • Resizable plot zoom window

History

  • History tab synced to loaded .Rhistory file
  • New commands:
    • Load and save history
    • Remove individual items from history
    • Clear all history
  • New options:
    • Load history from working directory or global history file
    • Save history always or only when saving .RData
    • Remove duplicate entries in history
  • Shortcut keys for inserting into console or source

Packages

  • Check for package updates
  • Filter displayed packages
  • Install multiple packages
  • Remove packages
  • New options:
    • Install from repository or local archive file
    • Target library
    • Install dependencies

Miscellaneous

  • Find text within help topic
  • Sort file listing by name, type, size, or modified
  • Set working directory based on source file, files pane, or browsed for directory.
  • Console titlebar button to view current working directory in files pane
  • Source file menu command
  • Replace space and dash with dot (.) in import dataset generated variable names
  • Add decimal separator preference for import dataset
  • Added .tar.gz (Linux) and .zip (Windows) distributions for non-admin installs
  • Read /etc/paths.d on OS X to ensure RStudio has the same path as terminal sessions do
  • Added manifest to rsession.exe to prevent unwanted program files and registry virtualization

Server

  • Break PAM auth into its own binary for improved compatibility with 3rd party PAM authorization modules.
  • Ensure that AppArmor profile is enforced even after reboot
  • Ability to add custom LD library path for all sessions
  • Improved R discovery:
    • Use which R then fallback to scanning for R script
    • Run R discovery unconfined then switch into restricted profile
  • Default to uncompressed save.image output if the administrator or user hasn’t specified their own options (improved suspend/resume performance)
  • Ensure all running sessions are automatically updated during server version upgrade
  • Added verify-installation command to rstudio-server utility for easily capturing configuration and startup related errors

 

Bug Fixes

Source Editor

  • Undo to unedited state clears now dirty bit
  • Extract function now captures free variables used on lhs
  • Selected variable highlight now visible in all themes
  • Syncing to source file updates made outside of RStudio now happens immediately at startup and does not cause a scroll to the bottom of the document.
  • Fixed various issues related to copying and pasting into word processors
  • Fixed incorrect syntax highlighting issues in .Rd files
  • Make sure font size for printed source files matches current editor setting
  • Eliminate conflict with Ctrl+F shortcut key on OS X
  • Zoomed Google Chrome browser no longer causes cursor position to be off
  • Don’t prevent opening of unknown file types in the editor

Console

  • Fixed sporadic missing underscores (and other bottom clipping of text) in console
  • Make sure console history is never displayed offscreen
  • Page Up and Page Down now work properly in the console
  • Substantially improved console performance for both rapid output and large quantities of output

Miscellaneous

  • Install successfully on Windows with special characters in home directory name
  • make install more tolerant of configurations where it can’t write into /usr/share
  • Eliminate spurious stderr output in forked children of multicore package
  • Ensure that file modified times always update in the files pane after a save
  • Always default to installing packages into first writeable path of .libPaths()
  • Ensure that LaTeX log files are always preserved after compilePdf
  • Fix conflicts with zap function from epicalc package
  • Eliminate shortcut key conflicts with Ubuntu desktop workspace switching shortcuts
  • Always prompt when attempting to save files of the same name
  • Maximized main window now properly restored when reopening RStudio
  • PAM authorization works correctly even if account has password expiration warning
  • Correct display of manipulate panel when Plots pane is on the left

 

Previous Release Notes