rocsampling {Comp2ROC} | R Documentation |

## ROC Sampling

### Description

This function allows to calculate some statistical measures like extension and location.

### Usage

```
rocsampling(curve1.fpr, curve1.tpr, curve2.fpr, curve2.tpr, K = 100)
```

### Arguments

`curve1.fpr` |
False positive rate vector with all points of the Curve 1 |

`curve1.tpr` |
True positive rate vector with all points of the Curve 1 |

`curve2.fpr` |
False positive rate vector with all points of the Curve 2 |

`curve2.tpr` |
True positive rate vector with all points of the Curve 2 |

`K` |
Number of sampling lines |

### Details

This function uses functions like `areatriangles`

, `curvesegslope`

, `curvesegsloperef`

, `diffareatriangles`

, `linedistance`

and `lineslope to calculate`

that measures.
By default the number of sampling lines is 100, beacause it was proved by Braga that it was the optimal number.

### Value

This funcion returns a list with the following components:

`AUC1` |
Total Area of Curve 1 (using triangles) |

`AUC2` |
Total Area of Curve 2 (using triangles) |

`propc1` |
Proportion of Curve1 |

`propc2` |
Proportion of Curve2 |

`propties` |
Proportion of ties |

`locc1` |
Location of Curve 1 |

`locc2` |
Location of Curve 2 |

`locties` |
Location of Ties |

`K` |
Number of sampling lines |

`lineslope` |
Slopes of sampling lines |

`diffareas` |
Difference of area of triangles |

`dist1` |
Distance of the intersection points of Curve 1 to reference point |

`dist2` |
Distance of the intersection points of Curve 2 to reference point |

### See Also

`areatriangles`

`curvesegslope`

`curvesegsloperef`

`diffareatriangles`

`linedistance`

`lineslope`

*Comp2ROC*version 1.1.4 Index]