Description Format Source Examples
Three measurement of enzyme activity on 24 patients. The measurements is of the enzymes sucrase and alkaline phosphatase. The interest is to compare the 'homogenate' and 'pellet' methods.
A data frame with 72 observations on the following 3 variables.
meth
a factor with levels SucHom
SucPel
Alkphos
, representing three different measurements,
i.e. homogenate and pellet values of sucrase, as well as homogenate values
of alkaline.
item
a numeric vector, the person ID for the 24 patients
y
a numeric vector, the measurements on the enzyme activity.
R. L. Carter; Restricted Maximum Likelihood Estimation of Bias and Reliability in the Comparison of Several Measuring Methods; Biometrics, Dec., 1981, Vol. 37, No. 4, pp. 733-741.
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