Generates the derivative of the B-splines basis matrix.
dbs(
x,
derivs = 1L,
df = NULL,
knots = NULL,
degree = 3L,
intercept = FALSE,
Boundary.knots = range(x, na.rm = TRUE)
)object of B-splines
a number of derivatives
degrees of freedom of B-splines
a vector of internal knots
degrees of B-splines
a logical vector
a vector of boundary knots
The function dbs returns a component:
B-spline matrix
The function dbs performs derivatives of B-splines