get_manifests

matrix or data frame from which manifest
  variables are extracted

Data

list (wtih numeric elements) indicating the
  set of manifest variables that form each block

Internal function not to be called by the user

Partial Least Squares Path Modeling (PLS-PM)
analysis for both metric and
non-metric data, as well as REBUS analysis.

Do NOT use this function unless you are ME, a package
  developer, or a jedi user who really knows what is doing
  (seriously!)