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st: RE: - graph matrix - with regression lines

From   "Nick Cox" <>
To   <>
Subject   st: RE: - graph matrix - with regression lines
Date   Wed, 21 Apr 2010 18:07:41 +0100

I don't think so. I think you have to loop over pairs of variables and
then -graph combine-. About half the code you need is in -cpyxplot- from


Philipp Rehm

is there a way to add regression lines (like in -graph twoway lfit- or 
-graph twoway qfit-) to a scatterplot matrix produced by -graph matrix-?

Here is an example of such a scatterplot matrix:

sysuse citytemp, clear
graph mat heatdd-tempjuly, ms(p) maxes(ylab(#4) xlab(#4))

I would like to add regression lines to each of the plots, as in this 

tw (scatter  heatdd cooldd) (lfit heatdd cooldd)

Can this be done?

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