The
marijuana data frame has 9 rows and 6 columns.
Changes in heart rate were measured for 9 subjects
measured 15 and 90 minutes after smoking marijuana
joints with low dose, high dose, and placebo.
DATA DESCRIPTION:
This data frame contains the following columns:
ARGUMENTS:
Placebo.15
Measurement taken 15 minutes after placebo.
Low.15
Measurement taken 15 minutes after Low dose.
High.15
Measurement taken 15 minutes after High dose.
Placebo.90
Measurement taken 90 minutes after placebo.
Low.90
Measurement taken 90 minutes after Low dose.
High.90
Measurement taken 90 minutes after High dose.
REFERENCES:
Schafer, Joseph L. (1997),
Analysis of Incomplete Multivariate Data ,
Chapman and Hall, New York.