# A naive Bayes label ranking model

### Description

This is an auxiliary function to build a necessary inputs to predict rankings.

### Usage

1 |

### Arguments

`x` |
is |

`y` |
is |

`n` |
is a parameter of 'memory'; that is, how fast past gets forgotten. (see details of time_weights). |

### Value

a list of size two: prior and conditional label ranking probabilities.