Ante-dependence Analysis
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Assesses order of ante-dependence for repeated measures data and calculates overall tests based on a specified order. A repeated-measures design is one in which subjects (animals, people, plots, etc.) are observed several times. Each subject receives a randomly allocated treatment, either at the outset, or repeatedly through the experiment. The subjects are observed at successive occasions to see how the treatment effects develop.

Data at Successive Times

Used to enter the names of the variates, one for each time point, containing the data observations which are to be analysed. The button allows multiple selections to be copied from Available Data

Order of Ante-dependence

Select Assess to assess the order of ante-dependence. You can specify the maximum order against which to test in the specified field entitled Maximum. To calculate overall tests based on a specific order select Set. You can specify the number of past times for which to adjust in the specified field entitled Order.

Treatment structure

The treatment terms to be fitted are specified by entering a model formula.

Block Structure

The underlying structure of the design is defined by entering a model formula.

Available Data

This lists data structures appropriate to the current input field. It lists either factors for use in specifying the treatment and block structure, or variates for specifying the data and additional covariates. The contents will change as you move from one field to the next. Double-click on a name to copy it to the current input field; alternatively, you can type the name directly into the input field.

Operators

This provides a quick way of entering operators in the treatment and block model formulas. Double-click on the required symbol to copy it to the current input field. You can also type in operators directly. See Operators in model formulae for a description of each.

Level of Interaction

Controls the maximum order of interaction to be generated when you use model-formula operators like *. The default is to include all interactions, up to those involving nine factors. (You cannot ask for more than nine.)

See Also