MethComp (version 1.30.2)

plvol: Measurements of plasma volume measured by two different methods.

Description

For each subject (item) the plasma volume is expressed as a percentage of the expected value for normal individuals. Two alternative sets of normal values are used, named Nadler and Hurley respectively.

Format

A data frame with 198 observations on the following 3 variables.

meth

a factor with levels Hurley and Nadler

item

a numeric vector

y

a numeric vector

Examples

data(plvol)
str(plvol)
plot( y[meth=="Nadler"]~y[meth=="Hurley"],data=plvol,
      xlab="Plasma volume (Hurley) (pct)",
      ylab="Plasma volume (Nadler) (pct)" )
abline(0,1)
par( mar=c(4,4,1,4) )
BA.plot(plvol)