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st: RE: AW: Comparing between variables

From   "Nick Cox" <>
To   <>
Subject   st: RE: AW: Comparing between variables
Date   Wed, 2 Sep 2009 18:28:05 +0100

This may be too obvious, but what about a scatter plot? 

Also, note the special purpose -pairplot- from SSC aimed specifically at
pairwise comparison and the discussion, accessible to all, within 

SJ-4-3  gr0005  . . . . .  Speaking Stata: Graphing agreement and
        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  N.
J. Cox
        Q3/04   SJ 4(3):329--349                                 (no
        how to select the right graph to portray comparison or
        assessment of agreement or disagreement between data
        measured on identical scales

.pdf visible via


Martin Weiss

-ttest- sounds more like you are trying to compare means than totals?
you thought about the -total- command proper?

Solorzano Mosquera, Jenniffer

How it is possible to compare between two variables for the same
individual? I'm trying to do a ttest to find differences between
variables constructed from two different data bases for the same unit.
For example, what is the difference between Total of workers for firms
group A based on data base number1 and Total of workers for firms group
A constructed with data base number 2.? I've already did a merge and I
have TotWorkers1 TotWorkers2 variables for the same firms.

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