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This is a part of my undergraduate thesis at IISc where I looked into the phase diagrams of the models presented in Jitesh et. al.(2018) : Deriving mesoscopic models of collective behaviour for finite populations

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Phase Diagrams

The PDF's obtained from the Fokker Planck equations of the higher order interaction model contains the normalisation constant P_0.
In order to plot the phase diagrams with h(triad interaction rate) and c(pairwise interaction rate) as the axes, the expectation value of |m| is obtained.
For such an expectation value, it is required to know the value of P_0.
The models discussed in the paper contains four parameters : s, N, h and c.
I have still not figured out a way to map this four parameter problem to a three parameter problem.
Therefore, for the moment, the required phase diagrams can be obtained by fixing the values of s and N and varying h, c since these two parameters form the axes.
For each value of h, c, N and s, a corresponding value of P_O is obtained and stored by noramlizing the PDF. This forms the first part of the code.
The second part of the code used this stored P_0's and for the correspondingly finds the expectation value of |m|.

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This is a part of my undergraduate thesis at IISc where I looked into the phase diagrams of the models presented in Jitesh et. al.(2018) : Deriving mesoscopic models of collective behaviour for finite populations

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