fastR2 (version 1.2.4)

PetStress: Pets and stress

Description

Does having a pet or a friend cause more stress?

Format

A data frame with 45 observations on the following 2 variables.

group

a factor with levels Control, Friend, or Pet

rate

average heart rate while performing a stressful task

Details

Fourty-five women, all self-proclaimed dog-lovers, were randomly divided into three groups of subjects. Each performed a stressful task either alone, with a friend present, or with their dog present. The average heart rate during the task was used as a measure of stress.

References

These data also appear in

Brigitte Baldi and David S. Moore, The Practice of Statistics in the Life Sciences, Freeman, 2009.

Examples

data(PetStress)
xyplot(rate ~ group, data = PetStress, jitter.x = TRUE, type = c('p', 'a'))
gf_jitter(rate ~ group, data = PetStress, width = 0.1, height = 0) %>%
  gf_line(group = 1, stat = "summary", color = "red")