Tag: work

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

 

RapidMiner launches extensions marketplace

For some time now, I had been hoping for a place where new package or algorithm developers get at least a fraction of the money that iPad or iPhone application developers get. Rapid Miner has taken the lead in establishing a marketplace for extensions. Is there going to be paid extensions as well- I hope so!!

This probably makes it the first “app” marketplace in open source and the second app marketplace in analytics after salesforce.com

It is hard work to think of new algols, and some of them can really be usefull.

Can we hope for #rstats marketplace where people downloading say ggplot3.0 atleast get a prompt to donate 99 cents per download to Hadley Wickham’s Amazon wishlist. http://www.amazon.com/gp/registry/1Y65N3VFA613B

Do you think it is okay to pay 99 cents per iTunes song, but not pay a cent for open source software.

I dont know- but I am just a capitalist born in a country that was socialist for the first 13 years of my life. Congratulations once again to Rapid Miner for innovating and leading the way.

http://rapid-i.com/component/option,com_myblog/show,Rapid-I-Marketplace-Launched.html/Itemid,172

RapidMiner, Marketplace, Extensions 30 May 2011
Rapid-I Marketplace Launched by Simon Fischer

Over the years, many of you have been developing new RapidMiner Extensions dedicated to a broad set of topics. Whereas these extensions are easy to install in RapidMiner – just download and place them in the plugins folder – the hard part is to find them in the vastness that is the Internet. Extensions made by ourselves at Rapid-I, on the other hand,  are distributed by the update server making them searchable and installable directly inside RapidMiner.

We thought that this was a bit unfair, so we decieded to open up the update server to the public, and not only this, we even gave it a new look and name. The Rapid-I Marketplace is available in beta mode at http://rapidupdate.de:8180/ . You can use the Web interface to browse, comment, and rate the extensions, and you can use the update functionality in RapidMiner by going to the preferences and entering http://rapidupdate.de:8180/UpdateServer/ as the update server URL. (Once the beta test is complete, we will change the port back to 80 so we won’t have any firewall problems.)

As an Extension developer, just register with the Marketplace and drop me an email (fischer at rapid-i dot com) so I can give you permissions to upload your own extension. Upload is simple provided you use the standard RapidMiner Extension build process and will boost visibility of your extension.

Looking forward to see many new extensions there soon!

Disclaimer- Decisionstats is a partner of Rapid Miner. I have been liking the software for a long long time, and recently agreed to partner with them just like I did with KXEN some years back, and with Predictive AnalyticsConference, and Aster Data until last year.

I still think Rapid Miner is a very very good software,and a globally created software after SAP.

Here is the actual marketplace

http://rapidupdate.de:8180/UpdateServer/faces/index.xhtml

Welcome to the Rapid-I Marketplace Public Beta Test

The Rapid-I Marketplace will soon replace the RapidMiner update server. Using this marketplace, you can share your RapidMiner extensions and make them available for download by the community of RapidMiner users. Currently, we are beta testing this server. If you want to use this server in RapidMiner, you must go to the preferences and enter http://rapidupdate.de:8180/UpdateServer for the update url. After the beta test, we will change the port back to 80, which is currently occupied by the old update server. You can test the marketplace as a user (downloading extensions) and as an Extension developer. If you want to publish your extension here, please let us know via the contact form.

Hot Downloads
«« « 1 2 3 » »»
[Icon]The Image Processing Extension provides operators for handling image data. You can extract attributes describing colour and texture in the image, you can make several transformation of a image data which allows you to perform segmentation and detection of suspicious areas in image data.The extension provides many of image transformation and extraction operators ranging from Wavelet Decomposition, Hough Circle to Block Difference of Inverse probabilities.
[Icon]RapidMiner is unquestionably the world-leading open-source system for data mining. It is available as a stand-alone application for data analysis and as a data mining engine for the integration into own products. Thousands of applications of RapidMiner in more than 40 countries give their users a competitive edge.

  • Data Integration, Analytical ETL, Data Analysis, and Reporting in one single suite
  • Powerful but intuitive graphical user interface for the design of analysis processes
  • Repositories for process, data and meta data handling
  • Only solution with meta data transformation: forget trial and error and inspect results already during design time
  • Only solution which supports on-the-fly error recognition and quick fixes
  • Complete and flexible: Hundreds of data loading, data transformation, data modeling, and data visualization methods
[Icon]All modeling methods and attribute evaluation methods from the Weka machine learning library are available within RapidMiner. After installing this extension you will get access to about 100 additional modelling schemes including additional decision trees, rule learners and regression estimators.This extension combines two of the most widely used open source data mining solutions. By installing it, you can extend RapidMiner to everything what is possible with Weka while keeping the full analysis, preprocessing, and visualization power of RapidMiner.
[Icon]Finally, the two most widely used data analysis solutions – RapidMiner and R – are connected. Arbitrary R models and scripts can now be directly integrated into the RapidMiner analysis processes. The new R perspective offers the known R console together with the great plotting facilities of R. All variables and R scripts can be organized in the RapidMiner Repository.A directly included online help and multi-line editing makes the creation of R scripts much more comfortable.
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Interview with Rob La Gesse Chief Disruption Officer Rackspace

Here is an interview with Rob La Gesse ,Chief Disruption Officer ,Rackspace Hosting.
Ajay- Describe your career  journey from not finishing college to writing software to your present projects?
Rob- I joined the Navy right out of High School. I had neither the money for college, or a real desire for it. I had several roles in the Navy, to include a Combat Medic station with the US Marine Corps and eventually becoming a Neonatal Respiratory Therapist.

After the Navy I worked as a Respiratory Therapist, a roofer, and I repaired print shop equipment. Basically whatever it took to make a buck or two.  Eventually I started selling computers.  That led me to running a multi-line dial-up BBS and I taught myself how to program.  Eventually that led to a job with a small engineering company where we developed WiFi.

After the WiFi project I started consulting on my own.  I used Rackspace to host my clients, and eventually they hired me.  I’ve been here almost three years and have held several roles. I currently manage Social Media, building 43 and am involved in several other projects such as the Rackspace Startup Program.

Ajay-  What is building43 all about ?

Rob- Building43 is a web site devoted to telling the stories behind technology startups. Basically, after we hired Robert Scoble and Rocky Barbanica we were figuring out how best we could work with them to both highlight Rackspace and customers.  That idea expanded beyond customers to highlighting anyone doing something incredible in the technology industry – mostly software startups.  We’ve had interviews with people like Mark Zuckerberg, CEO and Founder of FaceBook.  We’ve broken some news on the site, but it isn’t really a news site. It is a story telling site.

Rackspace has met some amazing new customers through the relationships that started with an interview.

Ajay-  How is life as Robert Scoble’s boss. Is he an easy guy to work with? Does he have super powers while he types?

Rob- Robert isn’t much different to manage than the rest of my employees. He is a person – no super powers.  But he does establish a unique perspective on things because he gets to see so much new technology early.  Often earlier than almost anyone else. It helps him to spot trends that others might not be seeing yet.
Ajay – Hosting companies are so so many. What makes Rackspace special for different kinds of customers?
Rob- I think what we do better than anyone is add that human touch – the people really care about your business.  We are a company that is focused on building one of the greatest service companies on the planet.  We sell support.  Hosting is secondary to service. Our motto is Fanatic Support®

and we actually look for people focused on delivering amazing customer experiences during our interviewing and hiring practices. People that find a personal sense of pride and reward by helping others should apply at
Rackspace.  We are hiring like crazy!

Ajay – Where do you see technology and the internet 5 years down the line? (we will visit the answers in 5 years 🙂 )?
Rob- I think the shift to Cloud computing is going to be dramatic.  I think in five years we will be much further down that path.  The scaling, cost-effectiveness, and on-demand nature of the Cloud are just too compelling for companies not to embrace. This changes business in fundamental ways – lower capital expenses, no need for in house IT staff, etc will save companies a lot of money and let them focus more on their core businesses. Computing will become another utility.  I also think mobile use of computing will be much more common than it is today.  And it is VERY common today.  Phones will replace car keys and credit cards (they already are). This too will drive use of Cloud computing  because we all want our data wherever we are – on whatever computing device we happen tobe using.
Ajay- GoDaddy CEO shoots elephants. What do you do in your  spare time, if any.
Rob- Well, I don’t hunt.  We do shoot a lot of video though! I enjoy playing poker, specifically Texas Hold ’em.  It is a very people oriented game, and people are my passion.

Brief Biography- (in his own words from http://www.lagesse.org/about/)

My technical background includes working on the development of WiFi, writing wireless applications for the Apple Newton, mentoring/managing several software-based start-ups, running software quality assurance teams and more. In 2008 I joined Rackspace as an employee – a “Racker”.  I was previously a 7 year customer and the company impressed me. My initial role was as Director of Software Development for the Rackspace Cloud.  It was soon evident that I was better suited to a customer facing role since I LOVE talking to customers. I am currently the Director of Customer Development Chief Disruption Officer.  I manage building43 and enjoy working with Robert Scoble and Rocky Barbanica to make that happen.  The org chart says they work for me.  Reality tells me the opposite :)

Go take a look – I’m proud of what we are building there (pardon the pun!).

I do a lot of other stuff at Rackspace – mostly because they let me!  I love a company that lets me try. Rackspace does that.Going further back, I have been a Mayor (in Hawaii). I have written successful shareware software. I have managed employees all over the world. I have been all over the world. I have also done roofing, repaired high end print-shop equipment, been a Neonatal Respiratory Therapist, done CPR on a boat, in a plane, and in a hardware store (and of course in hospitals).

I have treated jumpers from the Golden Gate Bridge – and helped save a few. I have lived in Illinois (Kankakee), California (San Diego, San Francisco and Novato), Texas (Corpus Christi and San Antonio), Florida (Pensacola and Palm Bay), Hawaii (Honolulu/Fort Shafter) and several other places for shorter durations.

For the last 8+ years I have been a single parent – and have done an amazing job (yes, I am a proud papa) thanks to having great kids.  They are both in College now – something I did NOT manage to accomplish. I love doing anything someone thinks I am not qualified to do.

I can be contacted at rob (at) lagesse (dot) org

you can follow Rob at http://twitter.com/kr8tr

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Citrix Webinar – Time Management for better Time Sharing

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I always liked Citrix products when I was a member of the Technical Advisory Board at the University of Tennessee. I especially liked enabling SAS software , R software, Matlab software , ONLY from a browser.

Data Mining through cloud computing, yes University of Tennessee’s analytics server http://analytics.utk.edu was way ahead in 2009- all these softwares at one portal no software needed on your own PC, simply upload data and work on any analytics software.

Here is a nice citrix webinar on managing Time (so you can read more webinars! nah. I think Youtube live streaming events with interactive question and answers is the way of the future while webinars are for Baby Boomers- you can do a test and control experiment yourself if you are in the webinar business. its a web2.oinar)

Register here

http://learn.gotomeeting.com/forms/26May11-APAC-ANZ-G2MC-WBR-L1?url=decisionstats

Standard Disclosure- I have not received any monetary or indirect compensation for promoting this webinar.

————————————————————————————————————————————————————-

Interruptions are productivity killers – between email, phone calls and back-to-back meetings, how do you find time to work on your top priorities?

Join top time-management guru Kent Curtis and learn how to stop “living in your inbox” and start prioritising tasks, messages and appointments according to what is most important.

This webinar takes the best principles from FranklinCovey’s world-class productivity training and teaches you how to apply them while using Microsoft Outlook as your scheduling tool.

Attend this interactive, one-hour webinar to:

Stay focused every day with a reliable planning system utilising Microsoft Outlook.
Control competing demands such as email, voice mail, meetings and interruptions.
Apply a planning process that gets better business results.
Reduce stress by eliminating low priority activities and distractions.
Register for the Webinar

Please forward this to colleagues who might be interested in learning more.

Kind regards,

H.R. Shiever | Managing Director – Asia Pacific

Citrix Online
A division of Citrix Systems, Inc.
http://www.citrixonline.com

Online Meetings Made Easy

GoToMeeting Corporate
Live Webinar

Title:

The New Time Management: Stay Focused Every Day with Reliable Planning

Date:

Thursday, 26 May
Time:

12 Noon Australian EST
10 AM Singapore SGT
7.30 AM India ST
Speakers:
Kent Curtis, Senior Consultant, FranklinCovey

Register here

http://learn.gotomeeting.com/forms/26May11-APAC-ANZ-G2MC-WBR-L1?url=decisionstats

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Interview- Top Data Mining Blogger on Earth , Sandro Saitta

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If you do a Google search for Data Mining Blog- for the past several years one Blog will come on top. data mining blog – Google Search http://bit.ly/kEdPlE

To honor 5 years of Sandro Saitta’s blog (yes thats 5 years!) , we cover an exclusive interview with him where he reveals his unique sauce for cool techie blogging.

Ajay- Describe your journey as a scientist and data miner, from early experiences, to schooling to your work/research/blogging.

Sandro- My first experience with data mining was my master project. I used decision tree to predict pollen concentration for the following week using input data such as wind, temperature and rain. The fact that an algorithm can make a computer learn from experience was really amazing to me. I found it so interesting that I started a PhD in data mining. This time, the field of application was civil engineering. Civil engineers put a lot of sensors on their structure in order to understand how they behave. With all these sensors they generate a lot of data. To interpret these data, I used data mining techniques such as feature selection and clustering. I started my blog, Data Mining Research, during my PhD, to share with other researchers.

I then started applying data mining in the stock market as my first job in industry. I realized the difference between image recognition, where 99% correct classification rate is state of the art, and stock market, where you’re happy with 55%. However, the company ambiance was not as good as I thought, so I moved to consulting. There, I applied data mining in behavioral targeting to increase click-through rates. When you compare the number of customers who click with the ones who don’t, then you really understand what class imbalance mean. A few months ago, I accepted a very good opportunity at SICPA. I’m looking forward to resolving new challenges there.

Ajay- Your blog is the top ranked blog for “data mining blog”. Could you share some tips on better blogging for analytics and technical people

Sandro- It’s always difficult to start a blog, since at the beginning you have no reader. Writing for nobody may seem stupid, but it is not. By writing my first posts during my PhD I was reorganizing my ideas. I was expressing concepts which were not always clear to me. I thus learned a lot and also improved my English level. Of course, it’s still not perfect, but I hope most people can understand me.

Next come the readers. A few dozen each week first. To increase this number, I then started to learn SEO (Search Engine Optimization) by reading books and blogs. I tested many techniques that increased Data Mining Research visibility in the blogosphere. I think SEO is interesting when you already have some content published (which means not at the very beginning of your blog). After a while, once your blog is nicely ranked, the main task is to work on the content of the blog. To be of interest, your content must be particular: original, informative or provocative for example. I also had the chance to have a good visibility thanks to well-known people in the field like Kevin Hillstrom, Gregory Piatetsky-Shapiro, Will Dwinnell / Dean Abbott, Vincent Granville, Matthew Hurst and many others.

Ajay- Whats your favorite statistical software and what are the various softwares that you have worked with.
Could you compare and contrast these software as well.

Sandro- My favorite software at this point is SAS. I worked with it for two years. Once you know the language, you can perform ETL and data mining so easily. It’s also very fast compared to others. There are a lot of tools for data mining, but I cannot think of a tool that is as powerful as SAS and, in the same time, has a high-level programming language behind it.

I also worked with R and Matlab. R is very nice since you have all the up-to-date data mining algorithms implemented. However, working in the memory is not always a good choice, especially for ETL. Matlab is an excellent tool for prototyping. It’s not so fast and certainly not done for ETL, but the price is low regarding all the possibilities for data mining. According to me, SAS is the best choice for ETL and a good choice for data mining. Of course, there is the price.

Ajay- What are your favorite techniques and training resources for learning basics of data mining to say statisticians or business management graduates.

Sandro- I’m the kind of guy who likes to read books. I read data mining books one after the other. The fact that the same concepts are explained differently (and by different people) helps a lot in learning a topic like data mining. Of course, nothing replaces experience in the field. You can read hundreds of books, you will still not be a good practitioner until you really apply data mining in specific fields. My second choice after books is blogs. By reading data mining blogs, you will really see the issues and challenges in the field. It’s still not experience, but we are closer. Finally, web resources and networks such as KDnuggets of course, but also AnalyticBridge and LinkedIn.

Ajay- Describe your hobbies and how they help you ,if at all in your professional life.

Sandro- One of my hobbies is reading. I read a lot of books about data mining, SEO, Google as well as Sci-Fi and Fantasy. I’m a big fan of Asimov by the way. My other hobby is playing tennis. I think I simply use my hobbies as a way to find equilibrium in my life. I always try to find the best balance between work, family, friends and sport.

Ajay- What are your plans for your website for 2011-2012.

Sandro- I will continue to publish guest posts and interviews. I think it is important to let other people express themselves about data mining topics. I will not write about my current applications due to the policies of my current employer. But don’t worry, I still have a lot to write, whether it is technical or not. I will also emphasis more on my experience with data mining, advices for data miners, tips and tricks, and of course book reviews!

Standard Disclosure of Blogging- Sandro awarded me the Peoples Choice award for his blog for 2010 and carried out my interview. There is a lot of love between our respective wordpress blogs, but to reassure our puritan American readers- it is platonic and intellectual.

About Sandro S-



Sandro Saitta is a Data Mining Research Engineer at SICPA Security Solutions. He is also a blogger at Data Mining Research (www.dataminingblog.com). His interests include data mining, machine learning, search engine optimization and website marketing.

You can contact Mr Saitta at his Twitter address- 

https://twitter.com/#!/dataminingblog

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Tom Davenport to Keynote at PAW New York

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message from Predictive Analytics World. If you are NY based you may want to drop in and listen.———————————————————————————-Tom Davenport to Keynote at
Predictive Analytics World New York
Take advantage of Super Early Bird Pricing by May 20th and recognize savings of $400. Additional savings when you bring the team*

Announcing Tom Davenport Keynote:
Thomas Davenport Every Day Analytics:
Making Leading Edge CommonplaceThomas Davenport
President’s Distinguished Prof, Babson College
Author, Competing on Analytics & Analytics at Work

Join your peers October 17-21, 2011 at the Hilton New York for Predictive Analytics World, the business event for predictive analytics professionals, managers and commercial practitioners, covering today’s commercial deployment of predictive analytics, across industries and across software vendors.

PAW NYC promises to once again break records as the biggest cross-vendor predictive analytics event ever. The conference program is packed with the top predictive analytics experts, practitioners, authors and business thought leaders, including keynote addresses from Thomas Davenport, author of Competing on Analytics: The New Science of Winning, and PAW Program Chair Eric Siegel, plus special sessions from industry heavy-weights Usama Fayyad and John Elder.
RAVE REVIEWS:“I came to PAW because it provides case studies relevant to my industry. It has lived up to the expectation and I think it’s the best analytics conference I’ve ever attended!“

Shaohua Zhang, Senior Data Mining Analyst
Rogers Telecommunications

“Hands down, best applied analytics conference I have ever attended. Great exposure to cutting-edge predictive techniques and I was able to turn around and apply some of those learnings to my work immediately. I’ve never been able to say that after any conference I’ve attended before!”

Jon Francis, Senior Statistician
T-Mobile

PAW NYC’s agenda covers black box trading, churn modeling, crowdsourcing, demand forecasting, ensemble models, fraud detection, healthcare, insurance applications, law enforcement, litigation, market mix modeling, mobile analytics, online marketing, risk management, social data, supply chain management, targeting direct marketing, uplift modeling (net lift), and other innovative applications that benefit organizations in new and creative ways.

Take advantage of Super Early Bird Pricing and realize
$400 in savings before May 20, 2011.

Note:  Each additional attendee from the same company registered at the same time receives an extra $200 off the Conference Pass.

Register Now!

eMetrics New York
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