Description Usage Format Source Examples
A sample of the yrbss data set.
1 | data("yrbss.samp")
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A data frame with 100 observations on the following 13 variables.
ageAge, in years.
genderGender.
gradeSchool grade.
hispanicHispanic or not.
raceRace / ethnicity.
heightHeight, in meters (3.28 feet per meter).
weightWeight, in kilograms (2.2 pounds per kilogram).
helmet_12mHow often did you wear a helmet when biking in the last 12 months?
text_while_driving_30dHow many days did you text while driving in the last 30 days?
physically_active_7dHow many days were you physically active for 60+ minutes in the last 7 days?
hours_tv_per_school_dayHow many hours of TV do you typically watch on a school night?
strength_training_7dHow many days did you do strength training (e.g. lift weights) in the last 7 days?
school_night_hours_sleepHow many hours of sleep do you typically get on a school night?
CDC's Youth Risk Behavior Surveillance System (YRBSS)
1 2 | data(yrbss.samp)
table(yrbss.samp$physically_active_7d)
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