The Olson Heart Lung Dataset
We need to determine the effect of the number of revolutions per minute (rpm) of the rotary pump head of an Olson heart-lung pump on the fluid flow rate Liters_minute. The rpm's are replicated at 50, 75, 100, 125, and 150 levels with respective frequencies 5, 3, 5, 2, and 5. The fluid flow rate is measured in litters per minute.
data(olson)
A data frame with 20 observations on the following 4 variables.
Observationobservation number
rpmrmp levels at 50, 75, 100, 125, and 150
Levelthe rpm levels
Liters_minutelitters per minute
Dean, A., and Voss, D. (1999). Design and Analysis of Experiments. Springer.
data(olson) par(mfrow=c(2,2)) plot(olson$rpm,olson$Liters_minute,xlim=c(25,175),xlab="RPM", ylab="Flow Rate",main="Scatter Plot") boxplot(Liters_minute~rpm,data=olson,main="Box Plots") aggregate(olson$Liters_minute,by=list(olson$rpm),mean) olson_crd <- aov(Liters_minute ~ as.factor(rpm), data=olson)
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