Computes numerical integration weights using Simpson's rule, trapezoidal rule, or Riemann sums. Used by [ff()] and [sff()] for constructing functional regression terms.
compute_integration_weights(xind, integration = "simpson")Matrix of integration weights (n x nxgrid).
Matrix of x-index values (n x nxgrid). Each row contains the evaluation points for one observation.
Character: "simpson", "trapezoidal", or "riemann".