**** Minimum Meal Frequency Code ****

* Last child in the last 2 years living with mother
* age in months
gen age = v008-b3
* drop if too old or not alive
keep if age<24 & b5==1

* keep only those children living with mother ...
keep if b9==0
* ... and keep the last born of those
drop if _n > 0 & caseid == caseid[_n-1]

drop if age<6

gen wt= v005/1000000

* among breastfed children 6-23 months, minimum meal frequency
* defined as receiving solid or semisolid food at least twice a day for 
* infants age 6-8 months and at least 3 times a day for children age 9-23 months
gen minfreq1 = 0 
replace minfreq1 =1 if (m39>1 & m39<8 & age>=6 & age<=8) | (m39>2 & m39<8 & age>=9 & age<=23)

*this is for breastfed children
ta minfreq1 if v404==1 [iw=wt]

* For nonbreastfed children age 6-23 months, minimum meal frequency is receiving 
* solid or semisolid food or milk feeds at least 4 times a day. 
* milk feeds
gen totmilkf = 0
replace totmilkf=totmilkf + v469e if v469e<8
replace totmilkf=totmilkf + v469f if v469f<8
replace totmilkf=totmilkf + v469x if v469x<8

* adding solid or semisolds      
gen feedings=totmilkf
replace feedings= feedings + m39 if m39>0 & m39<8

gen minfreq2 =0
replace minfreq2 = 1 if feedings>=4 

*this is for non-breastfed children
ta minfreq2 if v404==0 [iw=wt]

****

* Now we combine these variable to get the minimum meal frequency among all children
gen minfreq3=0
replace minfreq3=1 if minfreq1==1 & v404==1 
replace minfreq3=1 if minfreq2==1 & v404==0
ta minfreq3  [iw=wt]

*this gives 35.9% and 69,690 children as in the final report