# pickands.plot: Plot Pickands dependence function for CDA of Liouville... In lcopula: Liouville Copulas

## Description

The function will draw the Pickands dependence function for output in `tikz` if the corresponding function is selected.

## Usage

 ```1 2``` ```pickands.plot(rho, alpha, plot.new = T, CDA = c("C", "S"), tikz = F, ...) ```

## Arguments

 `rho` index of regular variation parameter `alpha` vector of Dirichlet allocations. Currently must be of length 2 `plot.new` boolean indicating whether a new plotting device should be called `CDA` whether to plot Pickands function for the extremal model of the copula (`C`) or the survival copula (`S`), which is the scaled Dirichlet `tikz` boolean specifying whether to prepare plot for `tikz` output. Defaults to `F` `...` additional arguments passed to `lines`

## Value

a plot of the Pickands dependence function

## Examples

 ```1 2 3 4 5 6 7``` ```pickands.plot(rho=0.9, alpha=c(1,1), col="slateblue1", CDA="C") pickands.plot(rho=0.9, alpha=c(2,3), col="slateblue2", CDA="C", plot.new=FALSE) pickands.plot(rho=0.5, alpha=c(2,3), col="slateblue3", CDA="C", plot.new=FALSE) #Parameters for the Pickands function of the scaled Dirichlet need not be integer pickands.plot(rho=0.9, alpha=c(1,1), CDA="S") pickands.plot(rho=0.9, alpha=c(0.2,0.5), col="darkred", CDA="S", plot.new=FALSE) pickands.plot(rho=0.8, alpha=c(1.2,0.1), col="red", CDA="S", plot.new=FALSE) ```

### Example output  ```Loading required package: copula

Attaching package: ‘lcopula’

The following object is masked from ‘package:datasets’:

airquality
```

lcopula documentation built on July 7, 2019, 1:03 a.m.