on 23/10/02 6:43 pm, Kim Price at [email protected] wrote:
> I need to replace some date of birth values that were entered
> incorrectly. The variable dob (V1) is entered as %d. I've been using
> variations on the following and coming up with error messages:
>
> replace V1=05sep2046 05sep1946 if id==434
>
> I want to change id 434's date from 05sep2046 to 05sep1946
-replace- needs the old value and the new value. And the variable you are
changing is a string variable. You need to surround the old and new values
with quotes
> replace V1="05sep1946" if id==434
or
> replace V1="05sep1946" if V1=="05sep2046"
However, this is a brute force solution. Consider: if people have impossible
birthdates, then they will have a minus age. Consider
1. calculating age normally
2. then using
replace age=age-100 if age < 0
Ronan M Conroy ([email protected])
Lecturer in Biostatistics
Royal College of Surgeons
Dublin 2, Ireland
+353 1 402 2431 (fax 2329)
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