poly_term {VAJointSurv} | R Documentation |
Term for Orthogonal Polynomials
Description
Term for Orthogonal Polynomials
Usage
poly_term(
x = numeric(),
degree = 1,
coefs = NULL,
raw = FALSE,
intercept = FALSE,
use_log = FALSE
)
Arguments
x , degree , coefs , raw |
same as |
intercept |
|
use_log |
|
Value
A list like poly
with an additional element called eval
to evaluate the basis. See VAJointSurv-terms
.
See Also
bs_term
, ns_term
, weighted_term
, and
stacked_term
.
Examples
vals <- c(0.41, 0.29, 0.44, 0.1, 0.18, 0.65, 0.29, 0.85, 0.36, 0.47)
spline_basis <- poly_term(vals,degree = 3, raw = TRUE)
# evaluate spline basis at 0.5
spline_basis$eval(0.5)
# evaluate first derivative of spline basis at 0.5
spline_basis$eval(0.5, der = 1)
[Package VAJointSurv version 0.1.0 Index]