Table 1

Model	Validation method
Model	'loo'	'nboo'	'rboo'	'test'
(n)PLS	Yes	Yes	Yes	Yes
OPA	No	No	No	No
OPA3	No	No	No	No
PARAFAC	Yes	Yes	Yes	Yes
PARAFAC2	?	No	No	No
PCA	No	Yes	Yes	No
PCAIV	No	Yes	Yes	No
Tucker	No	Yes	Yes	No
TuckerIV	No	Yes	Yes	No