| LSTS-package | LSTS Package |
| block.smooth.periodogram | Smooth Periodogram by blocks |
| Box.Ljung.Test | Ljung-Box Test Plot |
| estimator | Whittle estimator to Locally Stationary Time Series |
| fdensity | Spectral density |
| filter | Kalman filter for locally stationary processes |
| Fourier | Periodogram function |
| hessian | Hessian Matrix |
| kalman | Kalman filter for locally stationary processes |
| loglik | Locally Stationary Whittle log-likelihood Function |
| LS.kalman | Kalman filter for locally stationary processes |
| LS.summary | Summary for Locally Stationary Time Series |
| LS.whittle | Whittle estimator to Locally Stationary Time Series |
| LS.whittle.loglik | Locally Stationary Whittle log-likelihood Function |
| LS.whittle.loglik.sd | Locally Stationary Whittle Log-likelihood sigma |
| LS.whittle.loglik.theta | Locally Stationary Whittle Log-likelihood theta |
| LSTS | LSTS Package |
| periodogram | Periodogram function |
| smooth.periodogram | Smoothing periodogram |
| spectral | Spectral density |
| summary | Summary for Locally Stationary Time Series |
| timeseries | Periodogram function |
| ts.diag | Diagnostic Plots for Time Series fits |
| whittle | Whittle estimator to Locally Stationary Time Series |