covmat1d_from_cfun | COVMAT1D_FROM_CFUN Correlation function based covariance matrix |

covmat1d_markov | COVMAT1D_MARKOV Covariance matrix for a Markov process |

covmat3d | COVMAT3D Creation of 1D-3D covariance matrices |

covmat3d_from_cfun | COVMAT3D_FROM_CFUN Correlation function based covariance matrix for 1D-3D |

covmat_append | COVMAT_APPEND Appends a set of covariance matrices. |

covmat_partstat_corr | COVMAT_PARTSTAT_CORR Covariance matrix for multidimensional data |

covmat_test | COVMAT_TEST Tests if a covariance matrix is postive definite |