STATS_ONE_WAY_ANOVA(expr1, expr2
                    [, { 'SUM_SQUARES_BETWEEN'
                       | 'SUM_SQUARES_WITHIN'
                       | 'DF_BETWEEN'
                       | 'DF_WITHIN'
                       | 'MEAN_SQUARES_BETWEEN'
                       | 'MEAN_SQUARES_WITHIN'
                       | 'F_RATIO'
                       | 'SIG'
                       }
                    ]
                   )