This program computes statistics for the detection of events in the dynamics of ego-centred measurements of the Internet topology, as described in the following paper: -- Detecting events in the dynamics of ego-centred measurements of the Internet topology Matthieu Latapy, Assia Hamzaoui and Clémence Magnien Journal of Complex Networks 2(1): 38-59, 2014. -- It is provided 'as is' with no warranty. Usage: python stats.py input_dir begin end out_dir - input_dir is a directory containing the filtered output from radar measurements, using the parse.py script. See http://data.complexnetworks.fr/Radar/ for details about radar measurements and the filtering script. - begin, end are radar measurement step numbers - out_dir is a directory The output is in files named out_pre_cur.gz, where pre and cur are numbers indicating how many measurement steps are considered for the current view of the Internet topology (cur steps are merged into a single graph) and the previous view used for comparison (pre steps are merged into a single graph). Other files contain information about the sizes of connected components.