Create a tabular representation of the response in a balanced
groupedData object.
USAGE:
asTable(object)
REQUIRED ARGUMENTS:
object
A balanced
groupedData object
VALUE:
A matrix. The data in the matrix are the values of the response. The
columns correspond to the distinct values of the primary covariate and
are labelled as such. The rows correspond to the distinct levels of
the grouping factor and are labelled as such.