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Data frame question

from [chushugu] [Permanent Link][Original]
To: <s-news@lists.biostat.wustl.edu>
Subject: Data frame question
From: chushugu@hotmail.com
Date: Sun, 14 Sep 2003 10:33:15 -0700
Wrom: AFXISHJEXXIMQZUIVOTQNQEMSFDULHPQQW
Hi all,
 
I import a table from access2000 as a data frame
 
the form is as below
 
>mor
country Name Year Sex Cause q1 q2
2020  Argentina 1980 1  B27 9.15E-05 2.13E-05
2020  Argentina 1980 1  B126 3.05E-06 0
 
I would like to retrieve data in a way like mor["2020","argentina","1980",1,"b27",] to get a vector c(q1,q2), How to reconstruct the data or easy way to retrieve?
 
Chushu Gu
 
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