I've just noticed that Talk:Shape parameter says it's a generalization of the log-logistic. I've never heard of it though. Anyone who knows any more or feels qualified to relate the two please do. --Qwfp (talk) 22:45, 9 February 2008 (UTC)
Done it myself now. Qwfp (talk) 14:16, 14 February 2008 (UTC)
The Applications section cross-refers to AFT (accelerated failure time) models, and says that you can allow beta (shape) to vary but fix alpha (scale). But the AFT article referred to talks about varying a scale parameter. Does this (log-logistic) article have it the wrong way round?