The user specifies the probability of staying in the same area and spatial heterogeneity (both in the unfished state). This function returns the squared difference between these values and those produced by the three logit movement model.
movfit(par,prb,frac)Three parameters in the logit space that control the four probabilities of moving between 2 areas
User specified probability that individuals in area 1 remain in that area (unfished conditions)
User specified fraction of individuals found in area 1 (unfished conditions)
This is paired with getmov2 to find the correct movement model.