Method for the generic function knots that allows the
user to extract the vector of knots of a GeDS, GeDSboost or GeDSgam fit of a
specified order contained in a GeDS-class,
GeDSboost-class or GeDSgam-class object,
respectively.
# S3 method for GeDS
knots(Fn, n = 3L, options = c("all", "internal"), ...)# S3 method for GeDSboost
knots(Fn, n = 3L, options = c("all", "internal"), ...)
# S3 method for GeDSgam
knots(Fn, n = 3L, options = c("all", "internal"), ...)
A vector in which each element represents a knot of the GeDS/FGB-GeDS/GAM-GeDS fit of the required order.
the GeDS-class, GeDSboost-class or
GeDSgam-class object from which the vector of knots for the
specified GeDS, FGB-GeDS or GAM-GeDS fit should be extracted.
integer value (2, 3 or 4) specifying the order (\(=\) degree
\(+ 1\)) of the GeDS, FGB-GeDS or GAM-GeDS fit whose knots should be
extracted. By default equal to 3L. Non-integer values will be passed
to the function as.integer.
a character string specifying whether "all" knots,
including the left-most and the right-most limits of the interval embedding
the observations (the default) or only the "internal" knots should be
extracted.
potentially further arguments (required for compatibility with the definition of the generic function). Currently ignored, but with a warning.
This is a method for the function knots in the
stats package.
As GeDS-class, GeDSboost-class and
GeDSgam-class objects contain three different fits (linear,
quadratic and cubic), it is possible to specify the order of the GeDS fit
whose knots are required via the input argument n.
knots for the definition of the generic function; NGeDS, GGeDS,
NGeDSboost and NGeDSgam for examples.