sysuse auto, clear
tw (sca pr we) (function y=x, range(0 16000))
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of LL Miller, Avon
Longitudinal Study Parents and Children
Sent: Wednesday, October 08, 2008 4:59 PM
To: [email protected]
Subject: st: Line of equality in scatter plot
Afternoon all,
I'm trying to assess the reliability of a continuous variable with the same
variable assessed by a second person. I have used alpha var1 var2 to get
Cronbachs alpha but wanted to see what it is doing visually. I created a
scatter plot but can't find any option that will allow me to draw a line on
the plot through the diagonal i.e. where the points should fall if there is
no difference in the two assessments.
I have encountered several other useful things like ovfplot for after
regression plots but this since I am not doing regression this is not quite
what I want.
Does anyone know how to do this?
Cheers
Laura
----------------------
Please note new address and contact details from 22nd July 2008
LL Miller, Avon Longitudinal Study Parents and Children (ALSPAC)
Department of Social Medicine
University of Bristol
Oakfield House
Oakfield Grove
Clifton
Bristol BS8 2BN
Room number: BS9
Phone: +44(0) 117 331 0105
Fax: +44(0) 117 331 0080
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* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
