# Log determinant of sub-covariances

### Description

Function to calculate the log determinant off all sub-covariance matrices of size (k x k) from a covariance matrix.

### Usage

1 |

### Arguments

`covmat` |
a covariance matrix (ie. non-negative definite, square and symmetric) |

`k` |
dimension of sub-covariance matrices considered |

`all` |
if |

### Value

`coord.sel` |
The |

`log.det` |
The |

`all.comb` |
all combinations and their |

; NULL otherwise.

### Note

Setting `all = TRUE`

may need additionally a large amount of memory and
so may not work for a large number of combinations!!

Want to suggest features or report bugs for rdrr.io? Use the GitHub issue tracker. Vote for new features on Trello.