| bwadap | Adaptive bandwidth choice |
| bwadap.numeric | Adaptive bandwidth choice for infinite order density estimates |
| bwadap.ts | Adaptive bandwidth choice for infinite order spectral density estimates |
| bwplot | Bandwidth plot |
| bwplot.numeric | Bandwidth plot for density estimation or regression |
| bwplot.ts | Bandwidth plot for spectral density estimation |
| iodensity | Kernel density estimation with infinite order kernels |
| ioksmooth | Nadaraya-Watson regression estimator with infinite order kernels. |
| iospecden | Spectral density estimation with infinite order kernels |
| sospecden | Second order spectral density estimation using an infinite order pilot |