id summary reporter owner description type status priority milestone component resolution keywords cc workpackage 877 What did 3.1.2 do with polydispersity in the Fractal Model; what should 4.2 do? smk78 butler "Greg Newbloom & Adrian Rennie have both commented on the removal of polydispersity on the radius parameter in the fractal model in 4.0.1. It was allowed in earlier versions. The fractal S(Q) in this model ''also'' includes the radius parameter (as well as the spherical P(Q)). So there are two questions: 1. Did 3.1.2 and earlier versions only apply polydispersity to P(Q), or to P(Q) ''and'' S(Q)? 2. Should polydispersity be put back into this model for 4.2? " task closed critical SasView 4.1.0 SasView fixed SasView Bug Fixing