h_alonso: h_alonso
In CRC1266-A2/moin: Modelling Interactions

Alonso gravity model

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h_alonso(E, Si = 1, Sj = 1, f, in_delta, out_delta, in_g,
  in_s = rep(1, length(in_g)), out_g, out_s = rep(1, length(out_g)),
  alpha, x)

`E`	a matrix of random values (to be "optimized" by the Hamiltonian)
`Si`	a vectory of node attributes, e.g. carrying capacity or population
`Sj`	a vectory of node attributes, e.g. carrying capacity or population
`f`	a scalar giving the general systems constrained
`in_delta`	general node constraining value of inflows
`out_delta`	general node constraining value of outflows
`in_g`	vector of inflows (rows)
`in_s`	vector of inflows (rows)
`out_g`	vector of outflows (rows)
`out_s`	vector of outflows (rows)
`alpha`	lagrange multiplier
`x`	general node constraining value