Hi, I need to find out if the exponential, weibull, and log-normal distributions in the survreg package use the same parameterizations as in the functions rexp, rweibull, and rlnorm. I have looked at the R-help and Venables & Ripley (2002), and they have different functional forms for the Weibull, for example. If the parameterizations are different, is there an easy way to use the link function to take random draws from the survreg distributions? In addition, does anyone know what the functional form for the lognormal is, with respect to the survreg package? I looked in VR (p. 353), but I can't seem to map that parameterization (in terms of tau and lambda) onto the standard lognormal parameterization. Any advice is greatly appreciated. Yours, Olivia Lau.