ccl4data: Closed chamber study of CCl4 metabolism by rats.
Description
The results of a closed chamber experiment to determine metabolic
parameters for CCl4 (carbon tetrachloride) in rats.
Usage
data(ccl4data)
Arguments
format
This data frame contains the following columns:
time. The time (in hours after starting the experiment)
initconc. initial chamber concentration (ppm)
animal. This is a repeated measures design; this variable
indicates which animal the observation pertains to
ChamberConc. chamber concentration at time, in ppmEvans, et al. 1994 Applications of sensitivity analysis to a
physiologically based pharmacokinetic model for carbon tetrachloride in
rats. Toxicology and Applied Pharmacology 128: 36 -- 44.
plot(ChamberConc ~ time,data=ccl4data,xlab="Time (hours)",
xlim=range(c(0,ccl4data$time)),
ylab="Chamber Concentration (ppm)",log="y")
ccl4data.avg<-aggregate(ccl4data$ChamberConc,
by=ccl4data[c("time","initconc")],mean)
points(x ~ time,data=ccl4data.avg,pch=16)datasets