Data description
data(liver)
A list of 3 matrices
X: A 218 x 3 matrix containing observed values on three liver function test (predictor variables). ASpartate aminotransferase (AS), ALanine aminotransferase (AL), and Glutamate Dehydrogenase (GD)
G: A 218 x 4 indicator matrix containing the responses on Acute Viral Hepatitis (AVH), Persistent Chronic Hepatitis (PCH), Aggressive Chronic Hepatitis (ACH), Post-Necrotic Cirrhosis (PNC).
y: A vector of length 218 containing the responses (AVH, PCH, )
Plomteux, G. (1980). Multivariate analysis of an enzymic profile for the differential diagnosis of viral hepatitis. Clinical Chemistry, 26(13), 1897–1899.