FULLSDi                 Full scale-dependent statistics (MAE, MSE,
                        RMSE, MSLE, and RMSLE)
FULLSIi                 Full scale-independent statistics (MAPE, SMAPE,
                        RAE, RSE, and RRSE)
MAEi                    Mean absolute error (MAE)
MAPEi                   Mean absolte percentage error (MAPE)
MSEi                    Mean squared error (MSE) with bias-variance
                        decomposition
MSLEi                   Mean squared logarithmic error (MSLE)
RAEi                    Relative absolute error (RAE)
RMSEi                   Root mean squared error (MAE)
RMSLEi                  Root mean squared logarithmic error (RMSLE)
RRSEi                   Root relative squared error (RRSE)
RSEi                    Relative squared error (RSE)
SMAPEi                  Symmetric mean absolte percentage error (SMAPE)
TESTIND                 A data set created by merging 1) data from a
                        "gold standard" survey and 2) data from other
                        surveys of the same universe. Data from the
                        "gold standard" survey are assumed to be the
                        survey universe's "actual" response; data from
                        the other surveys have survey error which the
                        functions in 'TSEind' can calculate. Data are
                        organized by survey (columns) and survey
                        question (rows), and their values are the
                        aggregate, "topline" responses to the survey
                        questions which can range from 1 to 99 (the
                        scale used by each survey question).
