st: Put smoothed hazard plots on one graph

["D. Diego Torres" <ddtorres@rice.edu>]

Hello,

I recently discovered that it's quite easy to put multiple  
Nelson-Aalen plots onto one graph.  Here's the code I used on the  
merged data:

stset cum6, id(pubid) f(assoc6==1)
sts gen s6=na
stset cum8, id(pubid) f(assoc8==1)
sts gen s8=na
stset cum4, id(pubid) f(assoc4==1)
sts graph, cumh addplot(line s6 cum6, sort c(J) || line s8 cum8, sort c(J) ///
  ytitle("Cumulative Hazard") ylabel(0(1)3.5) ///
  xtitle("Cumulative Months of FTE Enrollment")  legend(order(1  
"Community College" 2 ///
  "Private" 3 "For-Profit"))) saving(AAcumhaz, replace)

Now, in trying to replicate this process for the smoothed hazard,  
there seems to be a problem with the hazard that -sts gen- is  
calculating and that gotten from -sts graph, hazard-.

Could someone please help me figure out how to get the smoothed hazard  
plots onto one graph like I did with the cumulative hazards?

Thanks,
Diego Torres

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