title: Generation of pie chart using gnuplot
body: <p>I have a CSV file with data like:</p>
  
  <pre><code>name,age
  raju,23
  anju,34
  manju,56
  sanju,56
  </code></pre>
  
  <p>I'm trying to generate a pie chart using gnuplot.
  Here's the command I'm executing:</p>
  
  <pre><code>#!/usr/bin/gnuplot -persist
  reset
  set terminal wxt
  unset key
  set datafile separator ","
  set xlabel "USERS"
  set ylabel "AGE"
  
  plot 'file.csv' using ($0):2:($0):xticlabels(1) with circles lc variable notitle
  </code></pre>
  
  <p>What am I doing wrong?</p>