Re: st: ssmenu, stcox and sample size estimates

[Simon <scmoore.lists@googlemail.com>]

<>

I've looked and under >user I have >Data, >Graphics and >Statistics each 
pointing to a blank sub menu

Simon


On 18/08/2010 15:37, Richard Goldstein wrote:
> it should be one of the items under "User" in the menu bar -- have you
> checked there?
>
> Rich
>
> On 8/18/10 10:33 AM, Simon wrote:
> > <>
> >
> > I have successfully installed Royston&  Babiker's ssmenu (SJ2-2 st0013.
> >   A menu-driven facility for complex sample size) and following the help
> > file ran -ssmenu on- to which I received "Study size menu on.  The
> > menubar has been changed." However, I cannot see any change in the menu
> > bar. Is this compatible with Stata 11MP? If not, could someone suggest
> > an alternative?
> >
> > I have data from a pilot RCT, the unit of allocation is premises and
> > each premises is subject to multiple failures. Data is described at the
> > daily level with half of the premises (n=16) receiving the intervention
> > half way through, the other half not. So I have run:
> >
> > stset date, fail(fail) exit(time .) id(premises) enter(date0)
> > xi: stcox intervention,  efron robust schoenfeld(sch*) scaledsch(sca*)
> > cluster(loc)
> >
> > And from this I would like to estimate the number of premises required
> > in the full study.
> >
> > Wishing you well
> > Simon
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