title: R, ggplot -density plots with counts
body: <p>I need three densities (or smooth histograms) in the same plot.  I am using ggplot, each variable has 1000 observations.  Hence, the number of times a value can occur is a maximum of 1000 times.  Suddenly my code produce extremely high counts for some values.</p>
  
  <pre><code>data &lt;- read.table("mydata.txt", sep=",")
  df &lt;- data.frame(data)
  df.m &lt;- melt(data, variables=)
  ggplot(den.m,aes(x=value, fill=variable)) + geom_density(alpha=0.25) 
  + ylab("Counts")
  </code></pre>
  
  <p>How to attach the data to this question?</p>