sample_pspline_coef_2d: Sample coefficients from 2D tensor P-spline prior
Description
Samples from tensor product P-spline prior with additive penalties:
P = (1/wiggliness) * (P_s x I_t + I_s x P_t) + I
Usage
sample_pspline_coef_2d(k_s, k_t, wiggliness)
Value
Matrix of coefficients (k_s x k_t).
Arguments
- k_s
Basis dimension for first margin.
- k_t
Basis dimension for second margin.
- wiggliness
Controls smoothness.