st: RE: Check for coding of new variables using data patterns

["Radwin, David" <dradwin@rti.org>]

Caroline,

How about -groups- (Nick Cox, SSC)?

. groups var1 var2 var3 var4 var5 newvar

David
--
David Radwin
Senior Research Associate
Education and Workforce Development Division
RTI International
2150 Shattuck Ave., Suite 800
Berkeley, CA 94704
Phone: 510-665-8274

www.rti.org


> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-
> statalist@hsphsun2.harvard.edu] On Behalf Of Thirukumaran, Caroline
Pinto
> Sent: Tuesday, October 22, 2013 11:19 AM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: Check for coding of new variables using data patterns
> 
> Hi,
> Is there a way to check the coding of a newly created variable using
> data patterns of variables that have used to create the new variable?
> 
> As an example, newvar is a variable that has been created based on
> values of var1-var5. The code used for creating the newvar variable is
> as follows:
> egen newvar=rsum(var1 var2 var3 var4 var5)
> 
> To check that newvar has been correctly coded, it would be helpful to
> have an output like the one below:
> 
> newvar var1 var2 var3 var4 var5 Frequency
> 0 0 0 0 0 0 10
> 1 0 0 0 0 1 20
> 1 0 1 0 0 0 40
> 2 0 0 1 1 0 70
> 2 0 1 1 0 0 80
> 3 2 0 1 0 0 110
> 3 1 0 1 0 1 120
> 4 1 0 1 2 0 130
> 
> -collapse-  gives an acceptable output (it does not give me the
> frequency count) only when var1 -var5 are binary.
> 
> I am using Stata 12.1 for Windows.
> 
> I get the output tabulated above from SAS using the following code:
> proc freq data=abc;
>  tables newvar*var1*var2*var3*var4*var5 / list missing;
> run;
> 
> Many thanks in advance,
> Caroline Thirukumaran


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