model.frame.cca reconstructs a
with the variables used in the constrained ordination method
model.matrix.cca creates a list of design matrices used
in constrained ordination. The items of the list are called
Constraints. If either partial
Conditions) or constrained component was missing,
a single matrix is returned.
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A constrained ordination result object from which the needed information is extracted.
Other arguments passed to the default method of the function.
The constrained ordination method objects do not save data on model frame or design matrix, and the functions must reconstruct the information in the session. This will fail if the data sets and variables of the original model are unavailable.
Returns a data frame (
model.frame) or an unnamed matrix or a
list of two matrices called
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