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st: generating one twoway graph using by


From   Daniel Egan <dp.egan@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: generating one twoway graph using by
Date   Fri, 24 Sep 2004 10:27:00 -0400

Hello all, 

I am trying to make a line plot of many individuals values over time
in one graph. I am hoping that there is someway to shortcut around the
syntax of -twoway- using -by- such that I do not need to specify all
individuals (I have nearly 200).

I started with 
twoway (line ivalue idate, by(PID))
but that gave 200 individual graphs.

so did 
twoway (line ivalue idate), by(PID)
but that gave the same thing. 


I am hoping to avoid needing to write
twoway (line ivalue idate if PID==1) (line ivalue idate if PID==2) ......

Should I stop hopeing, and start writing?

Thanks in Advance, 

Dan Egan
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