ROC curve

This software draws ROC curves and compute the optimal cut from the data.

Manual :

1- if not already installed, install R programming language.

2- install package ROCR : install.packages("ROCR")

3- unzip the software

4- copy your files in the “data” directory. Very important : avoid spaces or special characters in files names. The files must be formated as follows :

- txt or csv files with TAB separator

- first line : column names

- first column : row names

- second column : label this column 'group' and the values should be 0 for one group and 1 for the other one.

- next columns : values with dot as decimal separator.

For clinical studies: patients are in lines and clinical criteria in columns

3- execute the software by the command : source("ROC_curve-0.xx.r") in R

4- plots are in the "svg" directory and tables with AUC and optimal cut are in “results” directory.