Sunday, April 27, 2008

Reduce power consumption under Ubuntu

Friday, April 25, 2008

Multilevel and Longitudinal Modeling Using Stata, 2nd Edition

I got my copy of the new book. A quick glance shows a lot of update from the previous version and many newly added materials. To my surprise, there is still nothing on multi-process model (A.K.A. mixed response model), which GLLAMM can handle.

Tuesday, April 22, 2008

Some more on Ubuntu 8.04

I had bad experiences upgrading from earlier versions using SuSE before (several years ago), so I stopped using online upgrade (not update!), just backup all my stuff and do a clean install each time there is a new version. Upgrading from Ubuntu 7.10 to 8.04 completely changes my option about the most sensible way to upgrade a Linux installation. In both occasions (one on an 4-year old HP desktop, and one on one-year old Sony laptop), the process went really smoothly and yields very stable systems. Congratulations the Ubuntu team, and keep up the good work.

Saturday, April 19, 2008

Upgrade to Ubuntu 8.04

I just upgraded my Ubuntu from 7.10 to 8.04 via online upgrade method. It is still a release candidate but is stable enough. In fact, this is the perfect time to upgrade because all the servers are going to be jammed after the "final" version is released; and, there will be only minor updates between the RC version and the final version in April 24.

The whole process took less than 2 hours, and it is just amazing how smooth it went.

Update: I also upgraded my Sony laptop, which took a bit longer (6 hours or so). The results are very good. The new version seems to be more laptop-friendly, probably due to the new kernel.

Monday, April 07, 2008

A free implementation of the resampling stats language

written in Java. Very cool:

The author claims that he never took statistics course :)