Monthly Archives: August 2011

Fitting distribution by combing R and Python

Tweet The following example illustrates how to use R package with Python by using the Rpy2 package. This problem solve in this example is to fit a normal distribution on some data samples.

The result is stored in the … Continue reading

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Profiling in Python

Tweet Lot of information is available in the Python documentation website: http://docs.python.org/library/profile.html . However, here is a small snapshot of how to use it : Let us say you have a function call test(). First you need to run it: … Continue reading

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vim: replace the windows ^M character under Linux

Tweet Within VIM, there is a way to replace all the return carriage from Windows (that appear as ^M) by replacing them with the Linux version:

When \r stands for the return carriage in Linux (not \n as C … Continue reading

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SVN: How to revert (roll back) to a previous version ?

Tweet One reason to use SVN tool is to be able to revert to a previous version. How do we do that ? Imagine that the latest version (the one on the HEAD) is not what you want anymore, but … Continue reading

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running PHP from Command Line Shell

Tweet If you want to test some PHP code without using the browser interface, you can create a script to use command line shell as follows. Let us call this script scripting.php. Under Linux, create this file with the php … Continue reading

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R: how to use command line arguments from R scripts

Tweet If you want to script R with arguments, you can type (under a Linux shell):

where –args is a list of arguments that you want to use in your script. This script will contain the following commands:

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Thunderbird hangs forever when “Copying message to Sent folder”

Tweet I set up a new account under Thunderbird with an IMAP in-going and SMTP out-going. All mails and folders are correclty imported from the server. I received new mails can delete them (it is updated on the server). So … Continue reading

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Fedora 15 : Firefox drag and drop does not work

Tweet The solution is to install gtk2-engines package:

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Fedora 15: firefox bookmarks subfolder icons missing

Tweet You need first to install dconf-editor if not already done:

launch it and go to

set menus-have-icons=true.

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How to setup PHP under fedora

Tweet The following solution to install Apache, MySQL and PHP was checked under Fedora 15 distribution. First, you need to install the relevant packages:

Now, you need to start the relevant services:

This should be done each time … Continue reading

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