Social class mobility from 1971 to 1981 for 42425 men from the United Kingdom census. Subjects were aged 45-64.
A data frame with 36 observations on the following 3 variables.
Frequency of observation
social class in
1971 - a factor with levels I
, professionals, II
semi-professionals, IIIN
skilled non-manual, IIIM
skilled
manual, IV
semi-skilled, V
unskilled
social
class in 1971 - a factor with levels I
II
IIIN
IIIM
IV
V
with same classification