age in days was actually calculated at Univ of Essex data archive in the
early days before the LDS ('Mormon') CD set was released, to allow for the
problems of the census age field referring to days, months or years (ie you
couldnt search for greater than 5 etc and get consistent results)
It sounds as though you had access to one of their 'escaped' data sets
rather than the public version.
Frances Coakley
Senior Tutor, Rm 18BB02, Dept Elec Eng; University of Surrey, GUILDFORD,
GU2 7XH, UK
Tel +(0)1483 879129 email [log in to unmask]
|