AVEMAE                  Calculate average mean absolute error (aMAE)
AVEMAPE                 Calculate average mean absolute percentage
                        error (aMAPE)
AVEMSE                  Calculate average mean squared error (aMSE)
                        with bias-variance decomposition
AVEMSLE                 Calculate average mean squared logarithmic
                        error (aMSLE)
AVERAE                  Calculate average relative absolute error
                        (aRAE)
AVERMSE                 Calculate average root mean squared error
                        (aRMSE)
AVERMSLE                Calculate average root mean squared logarithmic
                        error (aRMSLE)
AVERRSE                 Calculate average root relative squared error
                        (aRRSE)
AVERSE                  Calculate average relative squared error (aRSE)
AVESMAPE                Calculate average symmetric mean absolute
                        percentage error (aSMAPE)
FULLSD                  Calculate full scale-dependent statistics
FULLSI                  Calculate full scale-independent statistics
TESTNUMB                A data set created by merging four smaller data
                        sets.  Three of those smaller data sets are
                        data from three surveys (O1, O2, O3); the other
                        is data from a "gold standard" survey (A1).
                        All four smaller data sets consist of the same
                        three variables (Q1, Q2, Q3): responses to the
                        same three questions, asked by each survey from
                        the same 10 respondents (ID), along the same
                        1-99 response scale.
