Generates a set of Fourier basis functions (sine and cosine pairs) over a given span.
Usage
hrf_fourier(t, span = 24, nbasis = 5)
Arguments
- t
A vector of time points.
- span
The temporal window over which the basis functions span (default: 24).
- nbasis
The number of basis functions (default: 5). Should be even for full sine-cosine pairs.
Value
A matrix of Fourier basis functions with nbasis columns.
Examples
# Create Fourier basis with 5 functions
t <- seq(0, 24, by = 0.5)
basis <- hrf_fourier(t, span = 24, nbasis = 5)
matplot(t, basis, type = "l", main = "Fourier Basis Functions")
