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Download pdf guide - VSN International

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6 Command file: Specifying the terms in the mixed model 1046.12 Analysis of variance tableThe ANOVA table has 4 forms:Source DF F_incSource DF F_inc F_con MSource DF DDF_inc F_inc P_incSource 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 inthe model. Users should study Section 2.6 to understand the contents of thistable. The ’conditional maximum’ model used as the basis for the conditionalF-statistic is spelt out in the .aov file described in section .The numerator degrees of freedom for each term is easily determined as thenumber of non-singular equations involved in the term. However, in general,calculation of the denominator degrees of freedom is not trivial. ASReml will bydefault attempt the calculation for small analyses, by one of two methods. Inlarger analyses, users can request the calculation be attempted using the !DDFqualifier (page 68). Use !DDF -1 to prevent the calculation.

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