| G13BBF | Multivariate time series, filtering by a transfer function model |
| G13MEF | Computes the iterated exponential moving average for a univariate inhomogeneous time series |
| G13MFF | Computes the iterated exponential moving average for a univariate inhomogeneous time series, intermediate results are also returned |
| G13MGF | Computes the exponential moving average for a univariate inhomogeneous time series |