st: New to Looping?

["Ms. Marilyn Ibarra" <ibarra@uga.edu>]

Hi,

I have never done a loop in STATA (only in TSP).  I have read on how to loop but can not seem to figure this out.

If I want to code the following:


gen r_va02     = clc_va02/ppp_food if nace_ind=="da15"; 

replace r_va02 = clc_va02/ppp_tobacco if nace_ind=="da16";

replace r_va02 = clc_va02/ppp_clothing if nace_ind=="db17" |   
                 nace_ind=="db18" | nace_ind=="dc19";

replace r_va02 = clc_va02/ppp_gdp if nace_ind=="dd20" |  
                  nace_ind=="de21" | nace_ind=="de22" | 
                  nace_ind=="df23" | nace_ind=="dg24" |  
                  nace_ind=="dh25" | nace_ind=="di26" | 
                  nace_ind=="dj27"  nace_ind=="dj28" | 
                  nace_ind=="dm34" | nace_ind=="dm35" |  
                  nace_ind=="dn36"; 

replace r_va02 = clc_va02/ppp_mach_eqp  if nace_ind=="dk29" | nace_ind=="dl30" | nace_ind=="dl31" | nace_ind=="dl32" | nace_ind=="dl33"; 
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