Dataset: cocaine_detect.csv Source: J.R. Mallette, J.F. Casale, V.L. Colley, D.R. Morello, J. Jordan (2018). "Changes in Illicit Cocaine Hydrochloride Processing Identified and Revealed Through Multivariate Analysis of Cocaine Signature Data," Science & Justice, Vol. 58, pp.90-97. Description: Multivariate analysis from 21 randomly selected kg of cocaine from a 517 kg seizure. All measurements are means of 3 samples. Variables (names): sampleID % Cocaine (cocaine) Benzoic Acid (benzoicAc) Ecgonine Methyl ester (ecgnMthEst) Ecgonine (ecgonine) Tropacocaine (tropacocaine) Trimethoxycocaine (trimethoxycoke) % PTHIT = phenyltetrahydroimidazothiazole (PTHIT) Alpha-truxillic acid (aTruxillic) Beta-Truxinnic acid (bTruxinnic) Total Truxillines (totTrux)