Description Usage Arguments Value Author(s)
Retail Gravity model
1 |
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 |
beta |
lagrange multiplier |
C |
distance matrix |
c |
distance constraining cost of the system |
gammas |
lagrange multiplier vector |
g |
constraining vector |
delta |
lagrange multiplier |
x |
general node constraining value |
s |
a vector of node characteristics |
a scalar
Daniel Knitter <knitter@geographie.uni-kiel.de>
Joe Roe <jwg983@hum.ku.dk>
Ray Rivers <r.rivers@imperial.ac.uk>
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