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data from an experimental study of recidivism of 432 male prisoners, who were observed for a year after being released from prison.
1 | data("rossi")
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A data frame with 432 observations on the following 62 variables.
weekweek of first arrest after release, or censoring time
arrestthe event indicator, equal to 1 for those arrested during the period of the study and 0 for those who were not arrested.
fina factor, with levels yes if the individual received financial aid after release from prison, and no if he did not; financial aid was a randomly assigned factor manipulated by the researchers.
agein years at the time of release.
racea factor with levels black other
wexpa factor with levels yes if the individual had full-time work experience prior to incarceration and no if he did not.
mara factor with levels married not married
paroa factor coded yes if the individual was released on parole and no if he was not.
prionumber of prior convictions.
educeducation, a categorical variable coded numerically, with codes 2 (grade 6 or less), 3 (grades 6 through 9), 4 (grades 10 and 11), 5 (grade 12), or 6 (some post-secondary).
emp1emp1 - emp52 are factors coded yes if the individual was employed in the corresponding week of the study and no otherwise.
emp2a factor with levels no yes
emp3a factor with levels no yes
emp4a factor with levels no yes
emp5a factor with levels no yes
emp6a factor with levels no yes
emp7a factor with levels no yes
emp8a factor with levels no yes
emp9a factor with levels no yes
emp10a factor with levels no yes
emp11a factor with levels no yes
emp12a factor with levels no yes
emp13a factor with levels no yes
emp14a factor with levels no yes
emp15a factor with levels no yes
emp16a factor with levels no yes
emp17a factor with levels no yes
emp18a factor with levels no yes
emp19a factor with levels no yes
emp20a factor with levels no yes
emp21a factor with levels no yes
emp22a factor with levels no yes
emp23a factor with levels no yes
emp24a factor with levels no yes
emp25a factor with levels no yes
emp26a factor with levels no yes
emp27a factor with levels no yes
emp28a factor with levels no yes
emp29a factor with levels no yes
emp30a factor with levels no yes
emp31a factor with levels no yes
emp32a factor with levels no yes
emp33a factor with levels no yes
emp34a factor with levels no yes
emp35a factor with levels no yes
emp36a factor with levels no yes
emp37a factor with levels no yes
emp38a factor with levels no yes
emp39a factor with levels no yes
emp40a factor with levels no yes
emp41a factor with levels no yes
emp42a factor with levels no yes
emp43a factor with levels no yes
emp44a factor with levels no yes
emp45a factor with levels no yes
emp46a factor with levels no yes
emp47a factor with levels no yes
emp48a factor with levels no yes
emp49a factor with levels no yes
emp50a factor with levels no yes
emp51a factor with levels no yes
emp52a factor with levels no yes
This version of the dataset is used and made available in the paper "Cox proportional hazards regression for survival data in R", J Fox and S Weisberg, 2011,
Data originally used in Rossi, P.H., R.A. Berk, and K.J. Lenihan (1980). Money, Work, and Crime: Some Experimental Results. New York: Academic Press.
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