get_rho

matrix (one block) of standardized manifest
  variables

Block

first principal component of <code>Block</code>

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!)