Author Archives: Thomas Cokelaer

PyQt4: example of TableWidget usage

Posted on October 1, 2012 by Thomas Cokelaer

The following simple example (inspired by saltycrane example shows how to build a simple application that pops up a table with PyQt4 and its TableWidget class. import sys from PyQt4.QtCore import * from PyQt4.QtGui import *   data = {’col1′:[’1′,’2′,’3’], … Continue reading →

Posted in Python | Tagged , , | 3 Comments

proper CSS style for HTML table

Posted on July 30, 2012 by Thomas Cokelaer

When using table in HTML, you should use CSS style. Indeed, the old way that consists of setting attributes within the table (and td/tr/th) tag is deprecated. Therefore this old code <table width="400" border="3" cellpadding="5" cellspacing="2"> <tr bgcolor="#DDDDDD"> <td width="100" … Continue reading →

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Running SSH commands (remotely)

Posted on July 24, 2012 by Thomas Cokelaer

Consider a login on ta Host machine. To run a command (let us try a simple ls to list the current directory), just type: ssh -X login@IPhostMachine lsssh -X login@IPhostMachine ls In practice, commands are longer and you would rather … Continue reading →

Posted in Linux | Tagged | 1 Comment

RPM usage

Posted on July 1, 2012 by Thomas Cokelaer

In order to check which version of a RPM package is installed, type (e.g., for the motif package): rpm -qa | egrep ‘motif’rpm -qa | egrep ‘motif’

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HTML: how to include another HTML file

Posted on July 1, 2012 by Thomas Cokelaer

To include another HTML document within a n HTML document, use this command: <! –#include virtual="temp.xml"–><! –#include virtual="temp.xml"–> the main HTML file should have a shtml extension.

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Differences between Class and ID in CSS style

Posted on July 1, 2012 by Thomas Cokelaer

The key thing is that an ID identifies a specific element within a page and therefore must be unique. Classes mark elements as members of a group and can be used multiple times. So why not always using Class over … Continue reading →

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stty command and prompt issue

Posted on July 1, 2012 by Thomas Cokelaer

Under Linux, the sheel command (or prompt) may behave strangly after some unusual command. I do not have any example off hand but typically, the escape key will not work anymore, or special characters. In the worst case what you … Continue reading →

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Photos from Devon, UK

Posted on July 1, 2012 by Thomas Cokelaer

[coolEye search=Devon2011 how=album puser=cokelaer width=500 height=500 source=picasa]

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How to add adsense in wordpress

Posted on June 24, 2012 by Thomas Cokelaer

In order to incorporate ads from adsense into your wordpress blog, you can use/install a dedicated plugin that will manage your adsense ID for you. However, you can also do it yourself, which may be more robust on the long … Continue reading →

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FEDORA: ec-incosolata font missing

Posted on June 21, 2012 by Thomas Cokelaer

Being developer of some R packages, I have to convert some R manual file using pdflatex. Under FEDORA, the conversion seems to work but some fonts are missing. It was not easy to figure out how to fix this issue. … Continue reading →

Posted in Linux | Tagged , | 1 Comment