Duncan data frame has 45 rows and 4 columns.
Data on the prestige and other characteristics of 45 U. S. occupations in 1950.
This data frame contains the following columns:
Type of occupation.
A factor with the following levels:
prof, professional and managerial;
Percent of males in occupation earning $3500 or more in 1950.
Percent of males in occupation in 1950 who were high-school graduates.
Percent of raters in NORC study rating occupation as excellent or good in prestige.
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. (2008) Applied Regression Analysis and Generalized Linear Models, Second Edition. Sage.
Fox, J. and Weisberg, S. (2011) An R Companion to Applied Regression, Second Edition, Sage.