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My favorite screen setting
My favorite screen setting (~/.screenrc) is pasted here to share #set the startup message startup_message off term linux ##use ` as the Global Key ## escape `` ##set a biger buffer defscrollback 4096 #...
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Change the Mac terminal ANSI color
The default blue ANSI color of Mac terminal is unreadable, I follow the way describe at http://ciaranwal.sh/2007/11/01/customising-colours-in-leopard-terminal to add an ANSI color panel to the Settings...
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PostgreSQL supports built-in master-slave replication
Long time before 8.5 alpha3, Postgres hadn’t provided any built-in solution for replication, although there were several 3-party solution there, it was possibly one of the most important defects that...
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Simple benchmark between Cython and Boost.Python
Inspired by Dan Sanduleac’s post at stackless.com, I re-ran the benchmark between Cython and Boost.Python. Basically, Cython is about 7x times faster than Boost.Python, which astonished me. The...
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Install R Package RPostgreSQL in Mac OSX
I am trying to use PostgreSQL for data warehousing data and R for interactive data exploration. So the first priority to make this happen is to connect PostgreSQL from R and read data back via...
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Install Postgresql in Mac OSX
There are at least four different ways to install PostgreSQL in your Mac. Method 1: Install from source code This is the most boring way to install PostgreSQL, you need to deal with all the things of...
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Turning PostgreSQL for Development Purpose
I installed a PostgreSQL 9.0 port in my puny Mac Pro, and I don’t want it to be a burden for the limited 2GB memory, so I modified following parameters in the postgresql.conf file: shared_buffers = 2MB...
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Useful Python Resources for Setting Up Django Website
Recently, I am developing a website and need practical solution to setting up a real-life production web serving environment. I googled and found following links that are useful for my final decision....
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Manipulate data in R via SQL interface
I has been looking for a R package providing SQL-like interface for data manipulation. Though, there are already usable DBI/RDBI package we can use to talk to SQL interfacing database already, they are...
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Play sqldf with RPostgreSQL
This post is obsolete, the content in this post is not correct, please see Gabor’s comment. In the previous post Manipulate data in R via SQL interface, I introduced how to use RpgSQL as DB driver to...
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