Radial profiles of the anisotropy parameter for selected sequences of differentially rotating models, evaluated on the equatorial plane. Top panels: the sequences are characterized by Ψ = 2, χ = 0.04,0.16,0.36,0.64,1.00 (in each panel, from right to left); the left and right panels show the effect of increasing of parameters c and , respectively. Bottom panels: the sequences are characterized by , χ = 0.04,0.16,0.36,0.64,1.00 (in each panel, from right to left); the left and right panels show the effect of decreasing and increasing the concentration parameter Ψ, respectively.