title: Corrplot in R not working
body: <p>I am trying to work out the correlation between these three labels using <code>corrplot</code>: </p>
  
  <pre><code>train.Item_ID   train.Price   train.Number_Of_Sales
  30495           165.123          1
  30375           68.666           5
  30011           253.314          2
  30864           223.122          1
  30780           28.75            1
  </code></pre>
  
  <p>But somehow its not showing cross correlation between different labels. </p>
  
  <pre><code>corrplot(cor(newtrain),method = "number")
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/Iu8uC.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Iu8uC.png" alt="enter image description here"></a></p>
  
  <p>Basically it just shows 1,1,1 but no cross correlation and then size comes so smaller. Please suggest.</p>