viagra data from textbook

A data set from Field et al (2012)

Usage

data(viagra)

Format

A data frame with 15 rows and 2 variables:

dose

Level of viagra dose

libido

Libido after taking viagra

Source

https://studysites.sagepub.com/dsur/study/

References

Field, A., Miles, J., & Field, Z. (2012) Discovering Statistics Using R. Sage: Chicago.