| Duncan {car} | R Documentation | 
The Duncan data frame has 45 rows and 4 columns.
Data on the prestige and other characteristics of 45 U. S. occupations in 1950.
Duncan
This data frame contains the following columns:
prof, professional and managerial;
wc, white-collar;
bc, blue-collar.
Duncan, O. D. (1961) A socioeconomic index for all occupations. In Reiss, A. J., Jr. (Ed.) Occupations and Social Status. Free Press [Table VI-1].
Fox, J. (1997) Applied Regression, Linear Models, and Related Methods. Sage.