R: Plotting Receiver Operating Characteristics Surface with...

rocs.fptp {ROCS} | R Documentation

## Plotting Receiver Operating Characteristics Surface with user-provided FPR, TPR & TDR

### Description

The function plots the colored ROCS in 3 dimensions using the rgl utilities. It shades the FDR-controlled AUC in the FPR-TPR plain. The VUS of the surface and the FCAUC area are calculated.

### Usage

    rocs.fptp(FP, TP, TDR, FDR.cut = 0.2)

### Arguments

`FP` | Vector of false positive rate.
`TP` | Vector of true positive rate.
`TDR` | Vector of true discovery rate.
`FDR.cut` | The cutoff value of FDR, for the purpose of FCAUC cualculation.

### Details

The ROCS is the surface spanned by the TPR-FPR-TDR and its projection to the TPR-TDR plain. The vulume is between the surface and its projection on the TPR-FDR plain (i.e. the AUC of ROC).

### Value

The volume under the surface (VUS) is returned.

### Author(s)

Tianwei Yu. Email: tianwei.yu@emory.edu.

### References

Yu T (2012) ROCS: Receiver Operating Characteristic Surface for Class-Skewed High-Throughput Data. PLoS ONE 7(7): e40598.

### See Also

rocs.x

[Package ROCS version 1.3 Index]