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st: RE: RE: RE: RE: RE: RE: RE: creating age at first birth from birth history data


From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   st: RE: RE: RE: RE: RE: RE: RE: creating age at first birth from birth history data
Date   Tue, 27 Apr 2004 14:47:30 +0100

Again, a piece of advice: use -mvdecode- 
to map those 88s which mean missing to Stata's
numeric missing. Otherwise you'll forget this 
fact some of the time.  

Nick 
[email protected] 

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Henry DOCTOR
> Sent: 27 April 2004 14:48
> To: '[email protected]'
> Subject: st: RE: RE: RE: RE: RE: RE: creating age at first birth from
> birth history data
> 
> 
> 
> There is a variable which isolates those that were born in 
> 1988 and those
> with missing values (coded as 88).
> 
>          85 |        487        3.08       41.93
>          86 |        526        3.33       45.26
>          87 |        583        3.69       48.95
>          88 |        650        4.12       53.07
>          89 |        525        3.32       56.39
>          90 |        722        4.57       60.96
>          91 |        607        3.84       64.81
>          92 |        610        3.86       68.67
>          93 |        682        4.32       72.99
>          94 |        692        4.38       77.37
>          95 |        700        4.43       81.80
>          96 |        711        4.50       86.30
>          97 |        724        4.58       90.89
>          98 |        638        4.04       94.93
>          99 |        801        5.07      100.00
> ------------+-----------------------------------
>       Total |     15,793      100.00
>  
> 
> -----Original Message-----
> From: Nick Cox [mailto:[email protected]] 
> Sent: 27 April 2004 12:28
> To: [email protected]
> Subject: st: RE: RE: RE: RE: RE: creating age at first birth 
> from birth
> history data
> 
> I have a substantive query in return, fired 
> by idle curiosity. 
> 
> In your data for -year- (below) there is a big peak in 1988. 
> 
> On another variable, it seems that "88" 
> was used to code missing, as you excluded
> it from tabulation. Is it possible
> that the real 88s for -year- (i.e. born in 1988) 
> have got mixed up with missings (coded 88) ? 
> 
> Nick 
> [email protected] 
> 

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