title: Candlestick/Financial Charts in Ruby
body: <p>Are there any good libraries available for plotting <a href="http://en.wikipedia.org/wiki/Candlestick_chart" rel="nofollow noreferrer">candlestick</a> and other types of financial charts in Ruby?  I saw <a href="https://stackoverflow.com/questions/1089307/financial-charts-graphs-in-ruby-or-python">this similar post</a> from over a year ago. The presented options that fit my needs from that post were Python, however.</p>
  
  <p>EDIT:</p>
  
  <p>One requirement is that I need real-time charts, updating multiple times a second.</p>