Reconstruct 2D Functional Data from Tensor Product Basis Coefficients — basis2fdata_2d • fdars

Reconstructs 2D surfaces from tensor product basis coefficients.

Usage

basis2fdata_2d(
  coefs,
  argvals,
  nbasis.s,
  nbasis.t,
  type = c("bspline", "fourier")
)

Arguments

coefs: Coefficient matrix [n x (nbasis.s * nbasis.t)].
argvals: List with two numeric vectors for s and t coordinates.
nbasis.s: Number of basis functions in s direction.
nbasis.t: Number of basis functions in t direction.
type: Basis type: "bspline" (default) or "fourier".

Value

A 2D fdata object.

Examples

# \donttest{
s <- seq(0, 1, length.out = 10)
t <- seq(0, 1, length.out = 10)
coefs <- matrix(rnorm(36), nrow = 1)
fd2d <- basis2fdata_2d(coefs, argvals = list(s, t), nbasis.s = 6, nbasis.t = 6)
# }