Alex Zolot's Blog

http://drop.io – free private shares up to 100MB per each drop; no ftp, no accounts, no email attachments. 30 days

azol — Sat, 23 Jan 2010 00:37:38 +0000

http://drop.io – free private shares up to 100MB per each drop; no ftp, no accounts, no email attachments. 30 days

A good R time series tutorial

azol — Tue, 19 Jan 2010 23:33:36 +0000

A good R time series tutorial is at http://lib.stat.cmu.edu/general/tsa2/R_time_series_quick_fix.htm

Recommendation Systems

azol — Sat, 10 Oct 2009 22:48:50 +0000

Very interesting about the Netflix Data Mining contest.:

http://cseweb.ucsd.edu/~mar008/docs/Gravity_Presentation.pdf , www.cs.uic.edu/~liub/KDD-cup-2007/proceedings/gravity-Tikk.pdf On the Gravity Recommendation System, Gabor Takacs, Istvan Pilaszy, Bottyan Nemeth, Domonkos Tikk – Budapest University of Technology and Economics

www.igi-global.com/downloads/excerpts/33031.pdf State-of-the-Art Recommender Systems. Laurent Candillier, Kris Jack, Francoise Fessant, Frank Meyer – Orange Labs Lannion, France

Nice map visualization

azol — Wed, 07 Oct 2009 14:12:48 +0000

Nice map visualization, via Vincent Granville:
http://flowingdata.com/2008/07/10/watching-the-growth-of-walmart-across-america-interactive-edition/
http://hindsight.trulia.com/map/#lat=33.101&lon=-117.279&zoom=11&mix=0.540

What is the Google Maps API for Flash? http://code.google.com/apis/maps/documentation/flash/

Set up R on Amazon’s AWS EC2

azol — Wed, 07 Oct 2009 14:08:37 +0000

1. Did all steps of Robert Grossman’s Running R on Amazon’s EC2 .
Because of win-XP client, on step “Accessing the AMI” -3 I

- generated putty private key az_key.private.ppk from amazon’s private key az_key.pem by prog puttygen.exe from putty set.

- used batch file

“C:\Program Files\Xming\Xming.exe” :0 -multiwindow -clipboard
E:\putty\putty -X -i S:\az_key.private.ppk -pw … -ssh root@ec2-67-202-53-24.compute-1.amazonaws.com

2. Added my staff to the launched program. To save result used JamesBranam’s http://blogs.sun.com/branajam/entry/aws_experience_part_6_creating

but step 8 (to register the AMI with AWS, it supposed to be executed from win client) generated errors so I registered new image alexzolot/az_img using
AWS Management Console.

2. Established connection with

SAGE

azol — Thu, 02 Jul 2009 21:07:25 +0000

I am playing with SAGE : http://www.sagenb.org/home/alex.zol/0/
Very funny thing!

RSvgDevice

azol — Wed, 03 Jun 2009 07:27:37 +0000

install.packages(“RSvgDevice”) #one time
library(RSvgDevice)
devSVG(file = “testRplots.svg”, width = 10, height = 8,
bg = “white”, fg = “black”, onefile=TRUE, xmlHeader=TRUE)
plot(1:11,(-5:5)^2, type=’b', main=”Simple Example Plot”)
dev.off()

system(‘C:/Progra~1/Mozill~1/firefox.exe file:///S:/29_Conferences/0225_WORLDCOMP/Dashbo~1/www_pyR/tmp/testRplots.svg’)

Mock-up Google Map application with Matrix Bar / Matrix Tower charts

azol — Tue, 02 Jun 2009 09:23:27 +0000

Posted mock-up Google Map application with Matrix Bar / Matrix Tower charts at http://zolot.us/work/G-Map/zR.html
I am playing with combination R + python + SVG , creating web dashboard for Sequence of Events – Flower Bed Chart: http://zolot.us/cgi-bin/SeqEv.py.
Could not install Rapache on bluehost that could allow exclude python and treat forms directly from R.
SVG works OK on Firefox and Chrome, on Opera – slowly?

Mock-up Google Map application with Matrix Bar / Matrix Tower charts

azol — Fri, 22 May 2009 17:57:12 +0000

Posted mock-up Google Map application with Matrix Bar / Matrix Tower charts at http://zolot.us/work/G-Map/zR.html

R links

azol — Sun, 26 Apr 2009 10:04:09 +0000

Alex Zolot's Blog

http://drop.io – free private shares up to 100MB per each drop; no ftp, no accounts, no email attachments. 30 days

A good R time series tutorial

A good R time series tutorial is at http://lib.stat.cmu.edu/general/tsa2/R_time_series_quick_fix.htm

Recommendation Systems

Nice map visualization

What is the Google Maps API for Flash? http://code.google.com/apis/maps/documentation/flash/

Set up R on Amazon’s AWS EC2

SAGE

RSvgDevice

Mock-up Google Map application with Matrix Bar / Matrix Tower charts

Mock-up Google Map application with Matrix Bar / Matrix Tower charts

R links

Quick R for SAS users

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