fev.RdDataset to examine if respiratory function in children was influenced by smoking.
fevA data frame with 654 observations on the following 5 variables.
AgeAge in years.
FEVForced expiratory volume in liters per second.
HtHeight in centimeters.
GenderGender.
SmokeSmoking status.
I. Tager and S. Weiss and B. Rosner and F. Speizer (1979). Effect of Parental Cigarette Smoking on the Pulmonary Function of Children. American Journal of Epidemiology. 110:15-26
data(fev)
summary(fev)
#> Age FEV Ht Gender Smoke
#> Min. : 3.000 Min. :0.791 Min. :117.0 Girl:318 No :589
#> 1st Qu.: 8.000 1st Qu.:1.981 1st Qu.:145.0 Boy :336 Yes: 65
#> Median :10.000 Median :2.547 Median :156.0
#> Mean : 9.931 Mean :2.637 Mean :155.3
#> 3rd Qu.:12.000 3rd Qu.:3.119 3rd Qu.:166.0
#> Max. :19.000 Max. :5.793 Max. :188.0