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st: RE: re multilevel scatterplots


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: re multilevel scatterplots
Date   Sun, 20 Jun 2004 14:51:48 +0100

Variants on this problem arise quite 
frequently on this list. 

If you 

. sort id x 
. twoway connected y x, c(L) 

you should get what you want if the 
data are unproblematic. Alternatively 

. ssc inst linkplot 
. linkplot y x, link(id) 

is in some respects a more general 
tool which does not, or at least 
should not, hinge on (1) having 
exactly the best sort order (2) 
a full set of -id- * -x- combinations. 

Nick 
n.j.cox@durham.ac.uk 

Richard Hiscock
> 
> I have a data set  in the form
> 
> y variable (distance in mm) x variable (3 technique) id(pt)
> 
> 45           1  1
> 35           2  1
> 42           3  1 
> 
>   ......etc
> 
> and wish to plot the y variable against 3 techniques with 
> line connecting
> each id.
> This is easily achieved in MLwin however it would be useful 
> to produce a
> higher quality graph in stata
> I have tried the usual sources (graph manual,ats & FAQ) with no lick


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