[R] proportional curves

[Thomas Lumley]

On Tue, 30 Oct 2007, raymond chiruka wrote:

> hie
>
>  I know this might not be the right forum but can anyone tell me what 
> parameters i can possibly use to generate proportional survival curves 
> using rweibull(n,shape,scale).

For the Weibull family, curves with different scale and the same shape 
have proportional hazards

>  if I plot the curves and they do not cross does it neccesarily mean 
> that they are proprotional.

No.

 	-thomas