Comp2ROC (version 1.1.4)

comp.roc.delong: Calculate areas and stats

Description

This function allows to calculate the areas under the curve for each curve and some statistical measures.

Usage

comp.roc.delong(sim1.ind, sim1.sta, sim2.ind, sim2.sta, related = TRUE)

Arguments

sim1.ind

Vector with the data for Curve 1

sim1.sta

Vector with the status for Curve 1

sim2.ind

Vector with the data for Curve 2

sim2.sta

Vector with the status for Curve 2

related

Boolean parameter that represents if the two modalities are related or not

Value

This function returns a list with:

Z

Hanley Z calculation

pvalue

p-value for this Z

AUC

Area under curve for each modality

SE

Standard error

S

Variance for each modality

R

Correlation Coeficient

Details

This function calculates the Wilcoxon Mann Whitney matrix for each modality, areas, standard deviations, variances and global correlations.

Examples

data(zhang)
modality1DataColumn = "modality1"
modality2DataColumn = "modality2"
data = read.manually.introduced(zhang, modality1DataColumn, TRUE,
                                modality2DataColumn, TRUE, "status", TRUE)
sim1.ind = unlist(data[1])
sim2.ind = unlist(data[2])  
sim1.sta = unlist(data[3])
sim2.sta = unlist(data[4])
comp.roc.delong(sim1.ind, sim1.sta, sim2.ind, sim2.sta)