melanoma: Melanoma dataset

Description Usage Format Source References Examples

Description

The melanoma dataset was obtained from Venkatram and Begg (1996). This study was conducted to assess the clinical usefulness of a clinical scoring scheme without dermoscope (CSS) used by dermatologists in order to determine if a suspicious pigmented lesion on the skin is a melanoma.

Usage

1

Format

A data frame with 72 observations on the following 2 variables.

X

clinical scoring scheme without dermoscope. Numerical vector.

group

true disease status (absence/presence of melanoma). Numerical vector (0=absence, 1=presence)

Source

Venkatraman, ES., Begg, CB. (1996). A distribution-free procedure for comparing receiver operating characteristic curves from a paired experiment. Biometrika 83, 835–848.

References

Venkatraman, ES., Begg, CB. (1996). A distribution-free procedure for comparing receiver operating characteristic curves from a paired experiment. Biometrika 83, 835–848.

Examples

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2

Example output

Loading required package: truncnorm
Loading required package: Rsolnp
Loading required package: ROCR
Loading required package: gplots

Attaching package: 'gplots'

The following object is masked from 'package:stats':

    lowess

       X                group       
 Min.   :-5.88100   Min.   :0.0000  
 1st Qu.:-3.22100   1st Qu.:0.0000  
 Median :-1.69550   Median :0.0000  
 Mean   :-1.55642   Mean   :0.2917  
 3rd Qu.: 0.00675   3rd Qu.:1.0000  
 Max.   : 3.03200   Max.   :1.0000  

GsymPoint documentation built on May 29, 2017, 9:50 a.m.