random1

Jacknife

The Jacknife  is also sometimes called the “Leave One Out” method, and is a method to somehow evaluate the stability of statistics done on data. By leaving one element out of the input array and studying the mean of the values, one can identify outliers. Here is a small Python implementation, generalised to “Leave N…

Data Processing application (Royal Observatory of Belgium)

Pack an Enthought Traits app inside a .exe using py2exe (Canopy Edit)

10 months ago, I published the updated version of my tutorial to pack an Enthought TraitsUI based application inside an .exe Windows Executable file, using a standard Python 2.7 install and the Enthought Tool Suite 4.0 (ETS4.0). In April 2013, Enthought published their latest distribution called “Canopy”. This distribution marks a clear change in the…

koreanboomboom

North Korean nuclear tests with Obspy

This morning, North Korea tested some nuclear “bomb” somewhere in the middle of the country (confirmed by Pyongyang officials and CTBTO), and many seismic sensors worldwide recorded the triggered waveforms. The location of the test is the same as the 2009 one, confirmed by the location provided by global monitoring networks (USGS, GEOFON). To pythonise…