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Re: st: Ungroup grouped data


From   "Martin Weiss" <Martin.Weiss1@gmx.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Ungroup grouped data
Date   Mon, 28 Dec 2009 17:15:48 +0100

<>

Not sure what you mean. You can omit the -label- stuff if you want to see "0" and "1" for presence or absence of the outcome :-)


HTH
Martin
-------- Original-Nachricht --------
> Datum: Mon, 28 Dec 2009 08:08:26 -0800 (PST)
> Von: Nikolaos Pandis <npandis@yahoo.com>
> An: statalist@hsphsun2.harvard.edu
> Betreff: Re: st: Ungroup grouped data

> Dear Martin,
> 
> Many thanks, this was great!
> 
> The counts variable shows the original count for every row of covariate
> (var1 and var2) pattern. How could I change this to show only 0 or 1
> depending on absence or presence of the outcome?
> 
> For example for covariate pattern 00 we have 7 cases from which we have 4
> individuals with the outcome and 3 without. I would like each row to show 0
> or 1, in other words for the covariate pattern 00 there should be 4 rows
> of 1 and 3 of zero value instead of having the value 4 for all rows for this
> covariate pattern.
> I hope I am clear.
> Again, many thanks and happy New year.
> Nick 
> 
> --- On Mon, 12/28/09, Martin Weiss <Martin.Weiss1@gmx.de> wrote:
> 
> > From: Martin Weiss <Martin.Weiss1@gmx.de>
> > Subject: Re: st: Ungroup grouped data
> > To: statalist@hsphsun2.harvard.edu
> > Date: Monday, December 28, 2009, 5:49 PM
> > <>
> > 
> > Here is a reasonably short solution for you! Have a happy
> > new year :-)
> > 
> > ***
> > clear*
> > 
> > inp byte(counts cases    var1 var2)
> > 1    1    0   
> > 2
> > 2    2    1   
> > 2
> > 4    7    0   
> > 0
> > 4    12   
> > 1    1
> > 1    3    2   
> > 2
> > 2    7    1   
> > 0
> > 0    2    2   
> > 0
> > 0    13   
> > 2    1
> > end
> > 
> > //to 47 cases
> > expand cases
> > 
> > //outcome must be assigned separately
> > bys var*: gen byte outcome=inrange(_n,1,counts)
> > la def mylabel 0 "outcome not observed" 1 "outcome
> > observed"
> > la val outcome mylabel
> > 
> > //get rid of "counts" and "cases"
> > drop c*
> > 
> > li, noo sepby(var*)
> > 
> > ***
> > 
> > 
> > HTH
> > Martin
> > -------- Original-Nachricht --------
> > > Datum: Mon, 28 Dec 2009 07:37:57 -0800 (PST)
> > > Von: Nikolaos Pandis <npandis@yahoo.com>
> > > An: statalist@hsphsun2.harvard.edu
> > > CC: npandis@yahoo.com
> > > Betreff: st: Ungroup grouped data
> > 
> > > Hi to all,
> > > 
> > > I have the dataset below which I would like to expand
> > and list each
> > > observation in one row.
> > > 
> > > The counts variable shows the number of individuals
> > with the outcome.
> > > The cases variable shows the number of individuals
> > that share the
> > > covariate pattern for the variables var1 and var2. 
> > > The sum of cases (47) shows the total number of
> > exposed individuals and
> > > the sum of counts (14) shows the total number of
> > individuals,from the
> > > exposed, with the outcome.
> > > 
> > > The fully expanded dataset should list 47 observations
> > (=sum of cases).
> > > 
> > > counts    cases   
> > var1    var2
> > > 1    1   
> > 0    2
> > > 2    2   
> > 1    2
> > > 4    7   
> > 0    0
> > > 4    12   
> > 1    1
> > > 1    3   
> > 2    2
> > > 2    7   
> > 1    0
> > > 0    2   
> > 2    0
> > > 0    13   
> > 2    1
> > > 
> > > Your help would be appreciated.
> > > 
> > > Best wishes,
> > > 
> > > Nick
> > > 
> > > 
> > >       
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> 
> 
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