Re: st: foreach program

[Scott Cunningham <scunning@gmail.com>]

On Sep 8, 2006, at 11:30 AM, Nick Cox wrote:

> Also, you are not consistent about what -age-s
> you are working with.
Nick,

You're referring to the last three lines of this original code, right?

foreach i of num 1/`r(max)' {
		gen i=perwt if age>=15 & age<=19 & group==`i' & gqtyped==200
		gen p=perwt if age>=15 & age<=19 & group==`i'
		egen itot=sum(i)
		egen ptot=sum(p)
		replace ir_level=itot if age==15 & group==`i'
		replace pop_level=ptot if age==15 & group==`i'		
		replace ir=itot/ptot if age==15 & group==`i'
		drop i p itot ptot
		}

I only record the "ir," "pop_level," and "ir_level" values for  
age==15 because I am merging these data with a data set on health  
outcomes, where health outcomes are delineated by an age variable  
that is in groupings of five year increments.  So, there is a value  
of "15" for the "age" variable in this separate dataset.  I record  
only values for the age==15 to save space, since I will later be  
dropping all observations not equal to 15, 20, 25, and so on.

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