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" h produces the estimated hazard component deltaH_j = H(t_j) -
H(t_(j-1)), where t_j is the current failure time and t_(j-1) is the
previous one. This is mainly a utility function used to calculate the
estimated cumulative hazard H(t_j), yet you can estimate the hazard
via a kernel smooth of the deltaH_j..."


Steve

Steven Samuels
sjsamuels@gmail.com
18 Cantine's Island
Saugerties NY 12477
USA
Voice: 845-246-0774
Fax:    206-202-4783


2010/7/11 László Sándor <sandorl@gmail.com>:
> Ahh, sorry, I forgot the code, though it is nothing surprising, I think:
>
> sts if clean == 1, hazard by(reviewerrole)  tmax(60) ///
>        title("Completion hazards by treatment group") ///
>        xline(45) xline(28) xline(21, lc(green)) xline(38, lc(green))
> graph export refhazard.pdf, replace
>
> cap drop hazard
> sts generate hazard = h, by(reviewerrole)
>
> 2010/7/11 László Sándor <sandorl@gmail.com>:
>> Hi,
>>
>> I wanted to use -sts gen- to produce my own variant of the hazard
>> graphs that -sts [graph]- produces. I am puzzled by what I get. That
>> graph shows (very plausibly for my data) varying hazard, sometimes
>> rising, sometimes falling, for all the four groups I plot it
>> separately (using the option -by-). When I used the -sts gen [newvar]
>> = h- command, I get hazards monotonously increasing in "time" (_t
>> after stset).
>>
>> What am I doing wrong?
>>
>> I paste you the commands I use, but they are not functional w/o my
>> data, I know. In any case, it would very useful if you could help me
>> reproduce the -sts graph ..., hazard- graphs using the output of -sts
>> gen ...=h-. (FYI, my goal is to use rough step function from -graph
>> bar- instead of smooth kernel density estimate.)
>>
>> Thank you!
>>
>> Laszlo
>> *
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>>
>
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