Re: st: RE: Line of equality in scatter plot

["LL Miller, Avon Longitudinal Study Parents and Children" <L.L.Miller@bristol.ac.uk>]

Wow that was quick and it worked. Perfect - many thanks.

Laura

--On 08 October 2008 17:02 +0200 Martin Weiss <martin.weiss1@gmx.de> wrote:

> sysuse auto, clear
> tw (sca pr we) (function y=x, range(0 16000))
>
>
> HTH
> Martin
>
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of LL Miller, Avon
> Longitudinal Study Parents and Children
> Sent: Wednesday, October 08, 2008 4:59 PM
> To: statalist@hsphsun2.harvard.edu
> 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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>
> *
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> *   http://www.ats.ucla.edu/stat/stata/



----------------------
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
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/