The number of CV segments used in one replication.
The maximum number of threads the algorithm is allowed to spawn (a value less than 1 or NULL means no threads).
The maximum number of components to consider in the PLS model.
The factor to scale the stand. dev. of the MSEP values when selecting the optimal number
of components. For the "one standard error rule",
sdfact is 1.
The statistic used to evaluate the fitness.
The (internal) numeric ID of the statistic.