cts: Continuous Time Autoregressive Models

Provides tools for fitting continuous-time autoregressive (CAR) and complex CAR (CZAR) models for irregularly sampled time series using an exact Gaussian state-space formulation and Kalman filtering/smoothing. Implements maximum-likelihood estimation with stable parameterizations of characteristic roots, model selection via AIC, residual and spectral diagnostics, forecasting and simulation, and extraction of fitted state estimates. Methods are described in Wang (2013) <doi:10.18637/jss.v053.i05>.

Getting started

Package details

AuthorGranville Tunnicliffe-Wilson [aut], Zhu Wang [aut, cre], Cleve Moler [ctb, cph], Jack Dongarra [ctb, cph], Jim Bunch [ctb, cph], G. W. Stewart [ctb, cph], John Nash [ctb]
MaintainerZhu Wang <zwang145@uthsc.edu>
LicenseGPL (>= 2)
Version1.0-26
Package repositoryView on CRAN
Installation Install the latest version of this package by entering the following in R:
install.packages("cts")

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cts documentation built on May 18, 2026, 1:08 a.m.