Source DF F_inc Source DF F_inc F_con M Source DF DDF_add F_inc P_add Source DF DDF_con F_inc F_con M P_condepending on whether conditional F-statistics are reported (requested by the !FCON qualifier ) and whether the denominator degrees of freedom are reported. ASReml always reports incremental F-statistics ( F_inc) for the fixed model terms (in the DENSE partition) conditional in the order the terms were nominated in the model. Users should consult the Theory chapter of the User Guide for details of this table. The 'conditional maximum' model used as the basis for the conditional F-statistic is spelt out in the .aov file. The numerator degrees of freedom for each term is easily determined as the number of non-singular equations involved in the term. However, in general, calculation of the denominator degrees of freedom is not trivial. ASReml will by default attempt the calculation for small analyses, by one of two methods. In larger analyses, users can request the calculation be attempted using the !DDF qualifier. Use !DDF -1 to prevent the calculation.
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