R: Area under the 'RN_X' curve

AUC_ln_K {coRanking} | R Documentation

## Area under the `RN_X` curve

### Description

Area under the R_{NX}(K) curve when K is put on a logarithmic scale.

### Usage

    AUC_ln_K(R_NX)

### Arguments

`R_NX` | The R_NX curve, a vector of values

### Details

It is calculated as:

AUC_{\ln K}(R_{NX}(K)) = ≤ft(∑_{K=1}^{N-2}R_{NX}(K)/K\right)/≤ft(∑_{K=1}^{N-2}1/K\right)

### Value

A value, the area under the curve.

### Author(s)

Guido Kraemer

### References

Lee, J. A., Peluffo-Ordóñez, D. H., & Verleysen, M., 2015. Multi-scale similarities in stochastic neighbour embedding: Reducing dimensionality while preserving both local and global structure. Neurocomputing, 169, 246–261. https://doi.org/10.1016/j.neucom.2014.12.095

[Package coRanking version 0.2.2 Index]