/* this do file select the observations from hrs 2004 to use in the ROC analysis */

log using select_completecase.log, replace
quietly include ../../../fem_env.do

use ../../../input_data/hrs_selected.dta, clear
merge 1:1 hhidpn wave using "../../../input_data/tics.dta", keepusing(totcog cogstate) nogen keep(master match)
keep if wave==7
keep if iwstat==1
keep if age>= 51
drop if missing(totcog)
keep hhidpn
tempfile hrs04_complete
save `hrs04_complete'

use ../../../input_data/hrs_selected.dta, clear
merge 1:1 hhidpn wave using "../../../input_data/tics.dta", keepusing(totcog cogstate) nogen keep(master match)
keep if wave==11
keep if iwstat==1
keep if age>= 59
drop if missing(totcog)
keep hhidpn
tempfile hrs12_complete
save `hrs12_complete'

merge 1:1 hhidpn using `hrs04_complete'
keep if _m==3
drop _merge
save completecase.dta, replace
log close