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st: RE: Calculate Age in years and months between 2 dates
From
Nick Cox <[email protected]>
To
"'[email protected]'" <[email protected]>
Subject
st: RE: Calculate Age in years and months between 2 dates
Date
Thu, 5 Jan 2012 18:04:54 +0000
Yes, but I wouldn't do that.
Consider someone born 21 April 1926 whom we interview today:
. di mofd(mdy(1,5,2012)) - mofd(mdy(4, 21, 1926))
1029
Her age is 85 completed years and 9 months.
. di floor(1029/12)
85
. di mod(1029,12)
9
So, get the month from -mofd()- and proceed from that. Some rounding, but you seem to want that.
Nick
[email protected]
Kanter, Rebecca
I am trying to calculate age in years and months betweeen an interview date (date1) and a birthdate (date2).
For example, if the interview date was 13 Sept 2011 and a birthdate is 06 Jan 2000 such that
and Age = (date1 - date2) / 365.25 = 11.68515
then this person is 11 years and 8 months (12*.68515 = 8.22)
or another example interview date was 18 Oct 2011 and birthdate is 06 Nov 2001 (Age = 9.946612)
so this person is 10 years and 11 months (12*.946612 = 11.36)
So I need to create a new month variable ...is there a way at least to truncate Age at the decimal point and multiply it by 12 ... ?
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