Description Usage Format Source References Examples
Data set contains weekly wages in 1987 for a sample of 25,632 males between the age of 18 and 70 who worked full-time along with their years of education, years of experience, indicator variable for whether they were black, indicator variable for whether they worked in or near a city, and a code for the region in the US where they worked.
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A data frame with 25631 observations on the following 6 variables.
Wage
weekly wage in dollars
Education
education in years
Experience
experience in years
Black
a factor with levels "Yes"
and
"No"
; indicator for whether the person is black
SMSA
a factor with levels "Yes"
and
"No"
; indicator for whether the person worked in or near a city
Region
a factor with levels "MW"
, "NE"
,
"S"
and "W"
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
Bierens, H.J. and Ginther, D.K. (2001). Integrated Conditional Moment Testing of Quantile Regression Models, Empirical Economics 26(1): 307–324
http://econ.la.psu.edu/~hbierens/QUANTILE.PDF
http://econ.la.psu.edu/~hbierens/MEDIAN.HTM
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'data.frame': 25631 obs. of 6 variables:
$ Wage : num 355 370 755 594 377 ...
$ Education : num 7 9 11 12 16 8 12 12 14 12 ...
$ Experience: num 45 9 46 36 22 51 34 0 18 17 ...
$ Black : Factor w/ 2 levels "Yes","No": 2 2 2 2 2 2 2 2 2 2 ...
$ SMSA : Factor w/ 2 levels "Yes","No": 1 1 1 1 1 1 1 1 1 1 ...
$ Region : Factor w/ 4 levels "MW","NE","S",..: 2 2 2 2 2 2 2 2 2 2 ...
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