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st: RE: scatterplot matrix with predicted plots

From   "Nick Cox" <>
To   <>
Subject   st: RE: scatterplot matrix with predicted plots
Date   Wed, 26 May 2004 13:29:43 +0100

This is a very understandable thing to 
want. My guess, however, is that it 
is much more difficult to implement 
than you would guess. That is, it 
would be possible to add code at the 
low level that would let you slap 

something Y X 

on top of 

scatter Y X 

The difficulty is to do that while 
also giving you, the user, the kinds
of handles that you really want 
to control the details of the graphs. 

Thus you might say, "All I want is an lfit Y X
on top on each scatter." But if that
is done blindly, then not everything 
is what you really want: for example, 
the y axis titles would probably be 
too messy for your taste. So you 
need a handle that controls that. 

All this is guesswork, and a signal 
to StataCorp to say that I am way 
too pessimistic here. We're in weird
territory with the new graphics: 
some things which might sound very difficult
are in fact very easy, and vice versa too. 


> -----Original Message-----
> From:
> []On Behalf Of 
> Garry Anderson
> Sent: 26 May 2004 08:13
> To:
> Subject: st: scatterplot matrix with predicted plots
> Hi,
> Is it possible please to overlay a predicted plot (linear or 
> quadratic or 
> fractional polynomial etc) for each graph in a scatterplot matrix?
> There does not appear to be an option in
> graph matrix x1 x2 x3 x4 y
> or in the menu for scatterplot matrix
> Best wishes, Garry
> *
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