Description Usage Arguments Details Value Author(s) See Also Examples
Create all square and interaction terms of a given formula
1 | terms2order(object, squared = TRUE, interactions = TRUE)
|
object |
An object for which |
squared |
logical: Should square terms be added to the interactions? |
interactions |
logical: Should interaction terms be added? |
The 'squares' are the squares of the terms of dataClass
'numeric' appearing in the formula (cf.
attr(object$terms, "dataClass")
,
except for terms that are already squares (contain ^
).
Analogously for interactions: they combine all terms that do not
contain :
.
'term.labels' of the generated terms
Werner A. Stahel, ETH Zurich
1 2 3 |
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