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st: RE: Residuals Index Influence Plot
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
st: RE: Residuals Index Influence Plot
Date
Tue, 18 May 2010 20:48:22 +0200
<>
***********
sysuse auto, clear
reg price weight length
predict cooksD, cooksd
gen byte obs=_n
su cooksD, d
tw (connected cooksD obs) /*
*/ (scatter cooksD obs if cooksD>`r(p90)', /*
*/ mcolor(green) msymbol(triangle) mlabel(obs))
***********
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Jeff
Sent: Dienstag, 18. Mai 2010 20:34
To: [email protected]
Subject: st: Residuals Index Influence Plot
Ladies and Gentleman,
In STATA 10, I am trying to create a residuals index influence plot, as
shown in Applied Linear Statistical Models, 4th Ed., Neter, Kutner,
Nachtsheim & Wasserman, page 382.
After creating a Cook's D variable, the STATA Syntax for the plot is as
follows:
scatter cooksD obs, connect(1)
However, the above syntax does not label the high influence and outlier
observations in the graph. Is there a syntax which might better label
those observations?
Thanks in advance.
Jeffrey B. Wolpin
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