Simulation of a coarticulation measure in a drawing task

This is code to accompany the paper "Observation of an expert model induces a skilled movement coordination pattern in a single session of intermittent practice", by Jason Friedman & Maria Korman. The code demonstrates a simulation of how the coarticulation measure used in the article is calculated, along with another measure (path offset). The simulation is based on the superposition of two overlapping minimum jerk trajectories. The coarticulation measure is defined as the ratio of the mean value of the troughs to the peaks (in the tangential velocity profile), i.e. greater values = more coarticulation. The path offset measure is defined as the mean distance from a straight line joining the targets.