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Re: st: Scatterplot matrix

 From solafem7@yahoo.co.uk To statalist@hsphsun2.harvard.edu Subject Re: st: Scatterplot matrix Date Sun, 13 May 2012 14:34:56 +0000

Nick,
Thanks so much for your explanation. I appreciate you.
Sola
Sent from my BlackBerry wireless device from MTN

-----Original Message-----
From: Nick Cox <njcoxstata@gmail.com>
Sender: owner-statalist@hsphsun2.harvard.edu
Date: Sun, 13 May 2012 08:48:47
To: <statalist@hsphsun2.harvard.edu>
Subject: Re: st: Scatterplot matrix

Statalist convention is that you are assumed to be using Stata 12.1,
unless your declare otherwise. Hence consult [G] graph matrix and its
references for more detail. A .pdf copy is included with your Stata.

But the main idea is very simple. A scatterplot matrix is just a table
of scatter plots such that the same y variable is on each row and the
same x variable is on each column. Thus you can add to the
interpretation of each individual plot some sense of how each data
point relates to others, for example, by identifying outliers on
either y or x axes and tracing them from plot to plot. A simple tip is
to call -graph matrix- such that the response or outcome of most
interest (if there is one) is named last; then it will plotted on the
last y axis, which will seem natural.

Nick

On Sun, May 13, 2012 at 7:07 AM,  <solafem7@yahoo.co.uk> wrote:

>  I just plot scatterplot matrix to explain relationship of three variable. The problem now is that I do not know how to interpret the scatterplot matrix. Is there any reference  manual that can be of help? Or can anybody explain this with an example?

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