| basic_values | Compute basic values |
| compute_fitted | compute_fitted |
| compute_lambdas | Compute lambda sequence |
| fit_plde | Fit plde for a fixed tuning parameter |
| fit_plde_sub | Fit plde for a fixed tuning parameter |
| legendre_polynomial | legendre_polynomial |
| min_q_lambda | Minimization of the quadratic approximation to objective function |
| model_selection | Optimal model selection |
| plde | Penalized Log-density Estimation Using Legendre Polynomials |
| q_lambda | Compute quadratic approximation objective function |
| soft_thresholding | Soft thresholding operator |
| update | Update the Legendre polynomial coefficient vector |