##Codes for "Flocking by stopping -- a mechanism of consensus in collective movement."

###Codes

1. A Python code ('phaseplane.py') to calculate and plot the phase plane of the ordinary differential equations of the pairwise stop model. The output is a phase plane with axes polarization(m) and average speed(v), in Figure 02 of the manuscript
2. A Python code ('SDE_Simulation.py') to perform numerical integration of the stochastic differential equation of the pairwise stop model. The output is a time series of the group polarization and average speed, in the Figure 06 & Figure 04 of the manuscript
3. A Python code ('Gillespie_Simulation.py') to perform numerical simulation of the discrete pairwise stop model. The output is a time series of the group polarization and average speed, in the Figure 06 & Figure 04 of the manuscript
4. A Python code ('Bifurcation.py') to plot a bifurcation diagram of the ordinary differential equations of the pairwise stop model. The output is a bifurcation plot for group polarization and average group speed, in Figure 03 of the manuscript.
5. A Python code ('2D_Simulation.py') to simulate the 2D model from the paper and plot the time series and histogram polarization. The output is Figure 05 of the manuscript.