Generates the derivative of the B-splines basis matrix.
bs.derivs(
x,
derivs = 0,
df = NULL,
knots = NULL,
degree = 3,
intercept = FALSE,
Boundary.knots = range(x)
)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 bs.derivs returns a component:
derivatives of B-spline
The function bs.derivs performs derivatives of B-splines