title: Receiver Operating Characteristics
body: <p>Can I expect a continuous ROC curve on binary outcomes(actual,predicted). I am using the following commands on the binary actual and binary predicted outcomes and all I am getting is just a plot with one inflection.The command I am using is </p>
  
  <pre><code>library(pROC)
  plot.roc(data$actual,data$predicted)
  </code></pre>
  
  <p>The reference sample dataset is </p>
  
  <pre><code>Actual                        
  0                                
  1                                
  0                                
  1                                
  0                                
  1 
  
  
  Predicted
  1
  0
  1
  1
  0
  1
  </code></pre>
  
  <p>Please let me know if there is any alternative explanation and plotting the ROC.</p>