the output from fitting a response surface using
rsm.lm.
OPTIONAL ARGUMENTS:
vary
a list, with components named by the factors in
rsm.object, that
determines which two factors are varied on the x and y axes while the
remaining factors are held constant. The components corresponding
to the factors to be varied are assigned the value
"v", while
the remaining components are assigned either an explicit numeric
value or the value
"c" to indicate that the factor is to be held
constant at its center point. (If a variable is omitted from
the list,
"c" is assumed.) By default, the first two factors
in
rsm.object are varied.
granularity
integer length of the vectors containing the
x and
y coordinates of the
grid over which the response is evaluated.
add
logical indicating whether to add the image to the current plot.
legend
logical indicating whether to construct a legend on the plot.
...
other arguments passed to
image.default.
This function is a method for the generic function
for class `rsm.lm'.
It can be invoked by calling
for an object x of the appropriate class, or directly by calling
regardless of the class of the object.