R: Nesting Depth of a Nested Archimedean Copula ("nacopula")

nesdepth {copula} | R Documentation

## Nesting Depth of a Nested Archimedean Copula ("nacopula")

### Description

Compute the nesting depth of a nested Archimedean copula which is the length of the longest branch in the tree representation of the copula, and hence at least one.

### Usage

    nesdepth(x)

### Arguments

`x` | object of class `"nacopula"`.

### Value

an integer, the nesting depth of the nested Archimedean copula. An (unnested) Archimedean copula has depth `1`.

### See Also

`dim` of nacopulas.

### Examples

    F2 <- onacopula("F", C(1.9, 1, C(4.5, c(2,3))))
    F2
    F3 <- onacopula("Clayton", C(1.5, 3:1,
                                 C(2.5, 4:5,
                                   C(15, 9:6))))
    nesdepth(F2) # 2
    nesdepth(F3) # 3

[Package copula version 1.0-1 Index]