title: Classification tree in R program
body: <p>I don't know why I cannot plot a tree using the following code.</p>
  
  <pre><code>m3&lt;-rpart(X~ .,data=data1r[1:5000,],method = "class",model = TRUE)
  </code></pre>
  
  <p>By the way, the data I use is only integer 0 and 1, will it affect the final result?</p>