case1102 {Sleuth2} | R Documentation |
The human brain is protected from bacteria and toxins, which course through the blood–stream, by a single layer of cells called the blood–brain barrier. These data come from an experiment (on rats, which process a similar barrier) to study a method of disrupting the barrier by infusing a solution of concentrated sugars.
case1102
A data frame with 34 observations on the following 9 variables.
Brain
Liver
Time
Treat
Days
Sex
Weight
Loss
Tumor
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
str(case1102) plot(Brain/Liver ~ Time, case1102, log="xy", pch=ifelse(Treat=="BD", 19,21)) legend(10,0.1, pch=c(19,21), c("Saline control", "Barrier disruption"))