title: Plot density lines without histogram
body: <p>I want to plot density lines without showing the histogram, I used this code:</p>
  <pre><code>hist(www, prob=TRUE, xlab = &quot;X&quot;, main = &quot;Plot&quot;,xlim=c(0,11), ylim=c(0,1), breaks =100)
  lines(density(x, adjust=5), col=&quot;red&quot;, lwd=2) 
  lines(density(y, adjust=5), col=&quot;blue&quot;, lwd=2) 
  lines(density(z, adjust=5), col=&quot;green&quot;, lwd=2)
  </code></pre>
  <p>And the result is showing in the the picture.
  How can I remove the Histogram? Thank you in advance!
  <a href="https://i.stack.imgur.com/4B7xt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4B7xt.png" alt="enter image description here" /></a></p>