nismod / simim

Spatial Interaction Models of Internal Migration
MIT License
7 stars 3 forks source link

Cost function instability #6

Closed virgesmith closed 5 years ago

virgesmith commented 5 years ago

Why model sensitive to distance units of measurement? It should just be a rescaling of the k param Inclusion of fixed O=D rows?

virgesmith commented 5 years ago

nonlinearity introduced by constant factor added for intra-LAD migration