> Functions > Data Visualization

plotroc(act,pred,pos,thr,options) plots a receiver operating characteristic.

Roc curve

data = urlread('https://www.mathlayer.com/doc/downloads/roccurve.csv')  
% fetching data from the server 
roccurve = readtable(data, 'isstring', true)
act = roccurve{:,1}; pred = roccurve{:,2}
plotroc(act,pred)

Roc curve with vector of thresholds

data = urlread('https://www.mathlayer.com/doc/downloads/roccurve.csv')  
% fetching data from the server 
roccurve = readtable(data, 'isstring', true)
act = roccurve{:,1}; pred = roccurve{:,2}
plotroc(act,pred,[],(1:-0.2:0),struct('confTable','plot'))