Glucose | R Documentation |
Dataset corresponding to serum glucose (measurements of glucose concentration in blood used to control diabetes) testing. Eight laboratories conducted tests to five different blood samples tagged with different references, ranging them from low sugar content to very high. Three replicates were obtained for each sample. It is retrieved from ASTM E 691 standard.
A data frame with 120 observations composed of the following 4 variables:
Glucose content in Serum.
Number of glucose measurement corresponding to each material.
Level of glucose, ranging from low content of sugar to very high level of glucose in blood.
Laboratories conducted tests.
ASTM E 691 (1999). Standard practice for conducting an interlaboratory study to determine the precision of a test method. American Society for Testing and Materials. West Conshohocken, PA, USA.
library(ILS) data(Glucose) summary(Glucose) attach(Glucose) str(Glucose) table(Replicate,Material,Laboratory) table(Laboratory,Material) st <- with(Glucose, tapply(Glucose, list(Material,Laboratory), mean)) st
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