IM with upper bounds on distances. For the unfilled symbols (○, □, ▵: u = 1, 1.42, 2 units, respectively), IM is calculated from all interbead distances encoded as di,j for di,j ≤ u and as equal to u for di,j > u. For the filled symbols (▪, ▴: u = 1.42, 2 units respectively), as above, except distances longer than u are treated as unknown. Solid line: No limit.