# Interval Distribution Function

### Description

`idf`

creates an object of class `idf`

. An `idf`

object
stores a distribution function defined on a set of intervals.

### Usage

1 2 3 |

### Arguments

`left, right` |
left and right endpoints of intervals on which the distribution function is defined. |

`p` |
probabilities allocated to the intervals. Probability values will be normalized inside the function. |

`x` |
an object of class |

`...` |
other arguments for printing. |

### Details

When left and right endpoints are equal, the intervals reduce to points.

`print.idf`

prints an object of class `idf`

as a three-coumn
matrix.

### Value

`left, right` |
left and right endpoints of intervals on which the distribution function is defined. |

`p` |
probabilities allocated to the intervals. |

### Author(s)

Yong Wang <yongwang@auckland.ac.nz>

### See Also

`icendata`

, `Deltamatrix`

, `npsurv`

.

### Examples

1 2 |