Format
This data frame contains the following columns:
hs
-
high school rank:
"L"
, "M"
and "U"
for lower,
middle and upper third.
phs
-
post high school status: Enrolled in college, (
"C"
), enrolled in
non-collegiate school, ("N"
), employed full-time, ("E"
)
and other, ("O"
).
fol
-
father's occupational level, (seven levels,
"F1"
, "F2"
,
..., "F7"
).
sex
-
sex: factor with levels
"F"
or "M"
.
f
-
frequency.
Source
From R. L. Plackett, (1974) The Analysis of Categorical
Data. London: Griffin who quotes the data from Hoyt, C. J., Krishnaiah, P. R. and Torrance, E. P. (1959) Analysis of
complex contingency tables, J. Exp. Ed. 27, 187--194.