Define a Fourier basis to simulate functional covariate observations.
build_Fourier_basis(grid, dim, per = 2 * pi)
a numerical vector.
a numerical value. It corresponds to dim(basis)/2
.
a numerical value which corresponds to the period of the sine and cosine functions.
a matrix. Each row is an functional observation evaluated on the
grid
time points.
See the sim_x
function.
# See the function \code{sim_x}.