fac.aov
. This function is
used to generate the default formula in a typical call to
fac.aov
.
formula.fac.design(object, response)
"fac.design"
, typically created using
design.digest
,
fac.design
, or
as.fac.design
.
fac.design
object.
formula
that typically will specify an effect
saturated model for the
fac.design
object.
The effect saturated model is generated as a fully crossed model if
there are fewer than seven factors (e.g., ` y~A * B * C * D') and a
crossed model of order 3 for seven or more factors (e.g., ` y~.^3' ). The
presence of a factor named
"Quad"
indicates that there are
center points and a term
"Quad"
that does not interact with any model
terms will be added to the model. If there is a blocking factor, it
will be added as the first term in the formula
(e.g., `y ~ Block1 + A*B*C*D + Quad').
a.design <- design.digest('ff0816') formula(a.design) formula(buffer.df) # the following two statements are equivalent fac.aov(formula(buffer.df),data=buffer.df) fac.aov(buffer.df)