Rodrigo Brice�o
> I have a database with hospital patients that have the age
> format defined in
> this way:
> 00H, 01H, ...until 74H, 01D, ...until 99D, 01M, ...until
> 74M, 01A, ... until
> 99A.
> I want to ask if anybody here could help me to construct
> some specific age
> distribution:
> 1...0-4 years
> 2...5-9 years
> 3...10-14 years and so on
>
> Original codes are: H: hours, D: days, M: months and A: years.
I can't see any way to do it but to crunch through
the possibilities.
I assume a string variable -code- containing
these string literals. I also assume no leading or
trailing spaces, itself assured by
replace code = trim(code)
gen age = 0 if index(code,"H") | index(code,"D")
replace age = real(substr(code,1,length(code)-1)) / 12 if
index(code,"M")
replace age = real(substr(code,1,length(code)-1)) if index(code,"A")
To check what didn't work
list code if missing(age)
Nick
[email protected]
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