This menu provides facilities for the analysis of two-dimensional data in the
form of a regular rectangular grid using the method of residual maximum likelihood (REML),
which is also sometimes called restricted maximum likelihood. The data should
be supplied in a single variate with factors to specify the rows and columns
of the rectangular grid. There should be exactly 1 observation for each point
on the grid.
Data
Specifies a variate containing the data values.
Row Factor
A factor specifying the rows in the regular grid.
Row-Model
Lists the available correlation models. Select the correlation model that you
want to apply across rows of the grid.
Random row term
Specifies whether you want to fit a random row effect in addition to the row
model.
Linear trend across rows
Specifies whether you want to fit a linear trend across rows.
Column Factor
A factor specifying the columns in the regular grid.
Column-Model
Lists the available correlation models. Select the correlation model that you
want to apply across columns of the grid.
Random column term
Specifies whether you want to fit a random column effect in addition to the
column model.
Linear trend across columns
Specifies whether you want to fit a linear trend across columns.
Fixed Model
The fixed model describes imposed treatment factors and covariates for which
the effect of specified levels or values are of interest. The model is
described using a formula, which can combine main effects and interactions of
factors and also covariates.
Random Model
The random model is generally used to describe those factors for which the
values present in an experiment can be considered drawn from some large
homogeneous population. The model is described using a formula, which can
combine main effects and interactions of factors and also covariates.
Available Data
This lists data structures appropriate to the current input field. 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 in the
name directly.
Operators
This provides a quick way of entering operators in the fixed and random 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.