OptionaldtypeComputation precision (should match dtype used in dlmFit). Default: 'f64'.
OptionalobsObservation noise std dev (scalar). Overrides the value from the fit result.
If omitted, defaults to fit.obsNoise[0] (the first observation's noise std dev).
Useful for scenario analysis ("what if observation noise were different?").
OptionaltimestampsTimestamps for forecast steps (length h). When provided, forecast-step intervals Δt_k = timestamps[k] - timestamps[k-1] (or timestamps[0] - last fit timestamp) are used to compute time-varying G(Δt_k) and W(Δt_k). When omitted, all forecast steps use Δt = 1 (uniform spacing).
OptionalXCovariate rows for forecast steps (h rows × q cols).
Options for dlmForecast.