ChickWeight
data frame has 578 rows and 4 columns from an
experiment on the effect of diet on early growth of chicks.
ChickWeight
c("nfnGroupedData", "nfGroupedData", "groupedData", "data.frame")
containing the following columns:
18
< ... < 48
giving a unique identifier for the chick. The ordering of
the levels groups chicks on the same diet together and
orders them according to their final weight (lightest to
heaviest) within diet.
This dataset was originally part of package nlme
, and that has
methods (including for [
, as.data.frame
, plot
and
print
) for its grouped-data classes.
SSlogis
for models fitted to this dataset.