Hi statalist,
I would like to draw a graph that shows all data point and (i) a trend
line over all data points and (ii) a trend line over selected data
points.
reg x1 x2
predict yhat1
graph yhat1 x1 x2, connect (l.) symbol(i[x3]) trim (3)
This shows the desired graph with one trend line over all data points.
reg x1 x2 if x4==1
predict yhat2
yhat2 shall be the second trend line over selected data points (x4 is a
dummy)
How has the graph command to look like?
Thanks for your help.
Hans
--
Hans J. Baumgartner
Deutsches Institut f�r Wirtschaftsforschung (DIW Berlin)
German Institute for Economic Research
Abt. Staat / Dept. Public Sector
K�nigin-Luise-Str. 5; 14195 Berlin (Dahlem)
Tel.: 030/89789-307; Fax.: 030/89789-114
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