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st: how to get a line (or scatter)graph alike the linkplot of Nick Cox?
From
José Maria Pacheco de Souza <[email protected]>
To
[email protected]
Subject
st: how to get a line (or scatter)graph alike the linkplot of Nick Cox?
Date
Fri, 06 Jan 2012 12:46:11 -0200
Dear Statalisters:
I need to get a line (or scatter) plot where lines of different
individuals do not connect, even when the first time of observation of
one starts after the end of another.
The small data set bellow and the commands show what I would like to
get,using -linkplot- written by Nick Cox and what I would not want to
get, using either line or scatter. The lines for individuals id=76 and
id=137 *should be two separated lines*.
id age zpi
27 8 -.4003515
27 12 .7188796
27 16 -.0958611
27 20 .0375383
27 24 .2878524
76 7 -.6242654
76 11 .3159339
137 17 -.6290992
137 21 -.2678947
436 10 .0439807
436 13 -.6680512
436 17 -.7185947
436 21 -1.088822
(Stata 10, same results for Stata12. Operational system Windows7 32 bits)
linkplot zpi age,link(id) mlabel(id)
scatter zpi age,sort( id age) con(ascending) mlabel(id)
line zpi age,sort( id age) con(ascending)
By the way, is it possible to make -linkplot- a twoway plottype?
Thanks.
josé maria
--
Jose Maria Pacheco de Souza
Professor Titular (aposentado), Colaborador Sen or
Departamento de Epidemiologia/Faculdade de Saude Publica, USP
Av. Dr. Arnaldo, 715
01246-904 - S. Paulo/SP - Brasil
fones (11)3061-7747; (11)3768-8612
www.fsp.usp.br/~jmpsouza
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