R: Plotting two ROC curves, highlighting the segments of the...

fcauc.comp.fptp {ROCS} | R Documentation

## Plotting two ROC curves, highlighting the segments of the curves corresponding to acceptable FDR levels.

### Description

The function draws two colored ROC curves in one plot. For each curve, the segment that corresponds to acceptable FDR (e.g. <= 0.2) is colored differently than the rest of the curve.

### Usage

    fcauc.comp.fptp(roc.1, roc.2, FDR.cut = 0.2, lwd = 3,
    colors = c("blue", "green", "cyan", "red"),
    exp.labels = c("experiment 1", "experiment 2"))

### Arguments

`roc.1` | A list object with three components: TP, FP and TDR, each being a vector.
`roc.2` | A list object with three components: TP, FP and TDR, each being a vector.
`FDR.cut` | The cutoff value of FDR.
`lwd` | The line width parameter to be passed on to the function lines().
`colors` | A vector of at least four colors. It is used for the coloring of the two ROC curves.
`exp.labels` | Experiment labels in the plot.

### Value

No value 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

fcauc.fptp()

[Package ROCS version 1.3 Index]