Parameters | Genetics | Additional Fixed Effects

Additional Fixed Effects
Use the text field to specify effects by which to model the mean of the response variable .
These fixed effects are in addition to the primary time and/or treatment effects, so do not specify any effects confounded with those. The effects can include any mixture of class variables (as specified in the Class Variables above) or continuous covariates .
To Specify Additional Fixed Effects:
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If you specify more than one fixed effect that you must separate the effects with spaces . For example, assuming A and B are listed as Class Variables , typing A B in the text field specifies variables A and B as main fixed effects.
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To specify interactions between effect, type an asterisk ( * ) between the effects. For example, assuming A and B are listed as Class Variables , typing A B A*B specifies variables A and B , and the interaction between A and B as fixed effects, and constructs a two-way ANOVA model.
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A vertical bar ( | ) can be used to create main effects and interactions. For example, typing A|B is the same as typing A B A*B .
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