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st: RE: RE: Line plot for subjects in follow-up study

From   Hugh Robinson <>
To   "" <>
Subject   st: RE: RE: Line plot for subjects in follow-up study
Date   Thu, 15 Apr 2010 18:38:20 -0600

Thanks Philip.
The more up to date code also allows the resulting graph to be opened in graph editor, where as hilite did not.
Thanks for your help.


-----Original Message-----
From: [] On Behalf Of Philip Ryan
Sent: Thursday, April 15, 2010 6:04 PM
Subject: st: RE: Line plot for subjects in follow-up study

The code at the UCLA site appears to be for earlier versions of Stata.

Nevertheless, it will still work if you edit the two asterisked lines to
reflect the newer date handling syntax:

input subj tp censored str11 datestr
1 1 0 "1 jan 1990"
1 2 0 "1 mar 1991"
2 1 1 "1 feb 1990"
2 2 1 "1 feb 1991"
3 1 1 "1 jun 1990"
3 2 1 "31 dec 1991"
4 1 0 "1 sep 1990"
4 2 0 "1 apr 1991"

gen date = date(datestr, "DMY")    ***  "dmy" replaced with "DMY"
format date %td                    ***  %dmy replaced with %td

The graph produced by the subsequent -hilite- command will be rendered in
the old gr7 format.

One way to accomplish the same sort of thing in modern Stata is:

graph twoway (line subj date, con(L)) ///
(scatter subj date if cens==1, msymb(X)) ///
(scatter subj date if cens==0, msymb(o)) , legend(off)

This could be prettied up, and no doubt there are other ways.

Philip Ryan
University of Adelaide 
South Australia

-----Original Message-----
[] On Behalf Of Hugh Robinson
Sent: Friday, 16 April 2010 8:51 AM
Subject: st: Line plot for subjects in follow-up study

I would like to show the staggered entry of my study subjects (on the
y-axis) against date (on the x-axis).  The y-axis would be each individual
subject with a horizontal line representing their follow-up period.

Essentially I'm trying to recreate a line plot similar to Fig 1.1 of Hosmer,
Lemeshow, and May (2008) Applied Survival Analysis.  
The same graph is presented on the UCLA stata website using the command
hilite however the code from UCLA doesn't seem to work in stata 11. 

Any idea?

Hugh S Robinson Ph.D.
Postdoctoral Researcher
Montana Cooperative Wildlife
Research Unit
University of Montana
Missoula, MT 59812
Ph. (406) 243-2476

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