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README.md

This is the source code for the web site: http://try.rforstats.org/

NOTE:

This project and many associated components is currently somewhere between a prototype and alpha-quality software. It works well enough to be a proof of concept but many many things are currently broken or unusable.

The idea for this site was inspired by Chris Done's tryhaskell which in turn was inspired by _why's tryruby.

The code for this site was forked from tryhaskell and substantially re-written by Charlie Sharpsteen. The server-side implementation has been switched from PHP to Sinatra and the HTML and CSS have been re-written in HAML and SASS using the Compass framework. Evaluation of R commands is handled by a frontend to Simon Urbanek's Rserve, Rserve: Websocket, which is written in Erlang and communicates via a WebSocket connection rather than AJAX.

REQUIREMENTS

To Use: An internet connection and modern WebKit-based browser.

To Develop:

  • The sinatra, haml and compass ruby gems to serve HTML pages.

  • Erlang R13B03 or later and Rserve: WebSocket along with Rserve to handle command evaluation.

BROWSER SUPPORT

This project makes heavy use of HTML5 WebSockets which has implications for browser support. As of the time this README was written (July 2010) the only publically released browsers with the necessary technology are based on recent versions of WebKit:

  • Safari 5+
  • Chromium/Google Chrome 5+

Firefox 3.7 is currently in development and should support WebSockets when it ships.

No version of Internet Explorer has the required technology and it is not one of the HTML5 features included in IE 9, the current development version. Therefore, it is unlikely that this site will work with Internet Explorer in the forseeable future. And to be bluntly honest, I'm not all that broken up about it.

LICENSE

Copyright (c) 2010 Charlie Sharpsteen

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


Javascript Console Library and CSS Copyright 2010 Chris Done. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY CHRIS DONE ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CHRIS DONE OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The views and conclusions contained in the software and documentation are those of the authors and should not be interpreted as representing official policies, either expressed or implied, of Chris Done.

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