# Logit and inverse-logit functions

### Description

logit() performs the logit function expit() performs the inverse logit function

### Usage

1 2 |

### Arguments

`p` |
A vector of probabilities on the interval [0,1] to be transformed into numbers on the real line. |

`x` |
A vector of numbers on the real line to be transformed into probabilities. |

### Details

The `logit`

function is log(p / (1 - p)).
The `expit`

function is exp(x)/(1 + exp(x)).

### Value

`logit`

returns a vector of real numbers.
`expit`

returns a vector of probabilities.