In 1972-74, a survey of one in six residents of Whickham, near Newcastle, England was made. Twenty years later, this data recorded in a follow-up study. Only women who are current smokers or who have never smoked are included.
data(femsmoke)A data frame with 28 observations on the following 4 variables.
observed count for given combination
a factor with levels yes no
a factor with levels yes no
a factor with agegroup levels 18-24 25-34 35-44 45-54 55-64 65-74 75+