Radial profiles of anisotropy parameter $\beta =1-{\sigma }_{\perp }^2/{\sigma }_r^2$ at several snapshots for the 3 cases – Q1D (left), ANI (middle), SYM (right). The grid resolution = 0.0005 comoving box units is marked in dashed gray lines. The values of r_trans corresponding to β = 0.5 over different snapshots are marked as the gray patch. Illustrative sigmoid fits to the profiles are shown in dashed black lines.