add.ellipse {netresponse} | R Documentation

## Add ellipse to an existing plot

### Description

Calculates and plots ellipse corresponding to specified confidence interval in 2-dimensional plot

### Usage

    add.ellipse(
      centroid,
      covmat,
      confidence = 0.95,
      npoints = 100,
      col = "black",
      ...
    )

### Arguments

`centroid` | Vector with two elements defining the ellipse centroid.
`covmat` | Covariance matrix for the investigated data. Only diagonal covariances supported.
`confidence` | Confidence level determining the ellipse borders based on the covariance matrix.
`npoints` | Number of plotting points.
`col` | Color.
`...` | Other arguments to be passed.

### Value

Used for plotting side effects.

### Author(s)

Leo Lahti leo.lahti@iki.fi

[Package netresponse version 1.47.6 Index]