Concrete                Concrete Compressive Strength Data Set
RankReg                 Rank the regression models based on the
                        confidence envelope for minimum ZIC
RankTS                  Rank the time series (ARMA) models based on the
                        confidence envelope for minimum ZIC
Sunspots                Number of sunspots, 1770 to 1869
regZIC.test             Test whether two ZIC values differ
                        significantly based on minimum ZIC for
                        regression data
tsZIC.test              Test whether two ZIC values differ
                        significantly based on minimum ZIC for time
                        series data
