constant: Get or set the constant term of a spray object
Description
The constant term of a spray object is the coefficient corresponding to
an index of all zeros. These functions get or set the constant of a
spray object.
Usage
constant(S,drop=FALSE)
constant(S) <- value
Arguments
S
Object of class spray
value
Numeric value to set the constant coefficient to
drop
Boolean, with default FALSE meaning to return a
spray object and TRUE meaning to return a numeric value
Value
In function constant(), return the coefficient, or a constant
multivariate polynomial, depending on the value of drop.