This folder collects python programs and scripts useful for working with the data set. The level of code documentation is rather low unfortunately, however, most code is short and concise. It should be possible to adapt things to your needs. CONTETS of the present folder: analysis graph_drawing tracking utilities analysis: Contains a complete suite of python programs that can be used to investigate various aspects of physarum graphs. graph_drawing: Code that draws a graph ontop of its original image. tracking: Code that first filters a graph and then constructs and solves the tracking LP necessary to obtain a node tracking. You will need cplex to run this. utilities: Various smaller scripts used to automate repetitive tasks.