compute changes associated with 2-Block PLS-scores
getPLSfromScores(pls, x, y)output of pls2B
scores associated with dataset x in original pls2B
scores associated with dataset y in original pls2B
returns data in the original space associated with the specified values.
other than predictPLSfromScores, providing Xscores will not compute predictions of y, but the changes in the original data x that is associated with the specific scores