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st: Re: Normalization in STATA

From   Sabah Abdullah <>
Subject   st: Re: Normalization in STATA
Date   Sat, 28 Jan 2006 19:34:50 +0000

How do we  normalize variables in STATA? I have household survey from
DHS and had simple output to describe the variables (see below). Note,
the number of observations and the number of total household is
problematic in running mlogit or ologit analysis. See, there were
several members of the same household who took part in the sruvey (see
the observation no. as 37,263 as opposed to 203 household numbers.) I
read in the DHS manual ' if the unit of analysis is the household
members then the files need to be normalized". There are various
normalization i.e. symetrical etc
Any suggestion or comments?


variable name   type   format      label      variable label
hhid            str12  %12s                   case identification
hv001           float  %9.0g                  cluster number
hv002           float  %9.0g                  household number
hv009           float  %9.0g                  number of household members

  Variable |       Obs        Mean    Std. Dev.       Min        Max
         hhid |         0
        hv001 |     37263    199.9898    115.6933           1        400
        hv002 |     37263    101.5376    58.35216          1        203
        hv009 |     37263    5.884926     2.78633          1         24

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