acf | Autocovariance function Estimation |
ar | Fit autoregressive models to time series |
ar.yw | Fit autoregressive model by solving Yule-Walker equations |
plot.acf | Autocovariance function Estimation |
plot.spec | Spectral Density Estimation |
spec | Spectral Density Estimation |
spec.pgram | Estimate spectral density of a time series from smoothed periodogram |
spectrum | Spectral Density Estimation |