The NCBI Gene Expression Omnibus (GEO) is 'is a public functional genomics data repository supporting MIAME-compliant data submissions.' In other words, its a online database of freely available experimental gene-expression data. Quite useful.
My book Create Simple GUI Applications with Python & Qt5 has been updated! New chapters on the Model View architecture and custom widgets.
Short demo of an experimental analysis of metabolomic (NMR) data using Pathomx. Metabolomic test dataset produced from THP-1 cells grown under normal and hypoxic conditions. Spectra (2D 1H JRES) have been pre-processed and quantified using the BML-NMR service.
Pathomx is a unique workflow-based analysis tool that provides complete analytical control while maximising usability.
A Python implementation of the Icoshift algorithm, a versatile tool for the rapid alignment of 1D NMR spectra
Cytoscape 3.0.2 was released on 1st August, a bugfix release for the 3.x series. However, there is a compatibility issue with the latest Java update from Apple resulting in Cytoscape hanging on startup. I'd followed advice found elsewhere to update to the latest Java version with no success, until I found this post from Tim Hull, outlining a simple way to check what version you have installed.
I'd had success using py2app for building Mac binaries for distribution but wanted to give cx_Freeze a go since it's cross platform - allowing builds for Windows, Linux, and more. Unfortunately, attempting to build using cx_Freeze was resulting in errors:
As mentioned in the previous post, I recently migrated this site over to the very clever Pelican. Setting it up was relatively straightforward using a combination of the official docs, this post and linked github repo from Dominic Rodger. That said, there were a few things that I stumbled at and non-obvious decisions that I've documented below.
On MacOS X 10.5 there is considerable slow-down in the MATLAB editor and other GUI elements. The issue is related to a change in the default Mac Java 2D rendering engine from Quartz2D (10.4) and Sun2D (10.5). This newer rendering engine improves performance for figure drawing, but other GUI operations are slower.
You can use the command ls --color (or an alias) to show directories with colours for folders, files, links, etc. However, you may not realise these colours can be easily configured using bashrc and a configuration file.
memcached is a general-purpose distributed memory caching system
originally developed by Danga Interactive for LiveJournal but now used
by many other sites. It is often used to speed up dynamic
database-driven websites by caching data and objects in RAM to reduce
the number of times an external data source (such as a database or API)
must be read. Here we describe the options available from the command
line to control a memcached instance via unix socket or IP:port.
Haiku is an open source operating system currently in development that specifically targets personal computing. Inspired by the Be Operating System, development began in 2001, and the operating system became self-hosting in 2008 with the first alpha release in September 2009, the second in May 2010 and the third in June 2011. Here we describe how to run a Virtualbox hosted Haiku OS on Mac OS X.
A quick one-liner to recursively search files for a given text string.
Show another of your blogs or any other RSS news feed on your WordPress blog with this simple template code.
A simple trick to make comments from the original post author stand out a bit more in the comment listing - useful for seeing replies to comments.
Sometimes things go a bit wrong. Sometimes they go very wrong. XKill is a simple little application that allows you to kill a running X application that has got out of kilter. Think of this as a quick way to get back control of your Desktop.
On desktop setups where icons are shown on the desktop these are normally taken from the specific folder ~/Desktop. If you find you want to show icons from either your Home or another directory for a particular install/user you can do so by editing the user-dirs config file as described here.
Screen is a neat little program that allows you to use multiple virtual terminals in a single session on Unix/Linux and Mac. However, it does more than just that. It can also allow you to share your current session on a machine with another user - allowing you to collaboratively hack away at a problem in real time.
Install the latest version of Google Earth for linux direct from Google sources.
Bash command substitution performs a given command replacing the marker with the resulting standard output. It is particularly useful when you want to store the output of a command in a variable or as an alternative method of chaining multiple commands together.
Syntax highlighting is more than just eye candy. It can turn a block of impenetrable code into a simple grok (although it has it's limits). To boost the usability of our code guides on this site we wanted to implement nice clear syntax highlighting of our hacks. Code samples are already marked up with markdown syntax so an extension to this is the obvious choice.
Django ships with it's own comments contrib app that provides commenting on arbitrary models. However this is a flat-comment system which doesn't allow replying to comments. An app called django-threadedcomments exists but has not been updated for a number of versions and is broken. Other alternatives are less flexible than the Django commenting system itself.
A quick method to remove duplicates from text files - including for example CSV files - where multiple records have been added (perhaps automatically) at different times resulting in multiple copies of the same record scattered throughout the file. Here is a simple one-liner bash command to remove duplicates using sort.
System request (often abbreviated SysRq or Sys Req) is a key on keyboards for PCs that has no standard use. This key can be traced back to the operator interrupt key of the IBM System/370 mainframe computer. But under Linux there's a bunch of useful things available via this key.
Brace expansion is one of the most powerful bash tricks with the potential to save you considerable time. Here are some common use cases.
Find the currently running processes on your system that were not started by yourself. A great way to find out what is hogging your system on multiple-user setups or remote logins.
Often forgotten the
file command will give you a simple summary of a file's type and content.
Cinnamon is a re-implementation of the Gnome 2 desktop in GTK3 developed by the Linux Mint project as an alternative to both Gnome3/Shell and Ubuntu Unity. Here we explain how to install Cinnamon on top of your Ubuntu installation, without installing Linux Mint.