title: charts.PerformanceSummary(read) Error in plot.window(xlim, ylim, xaxs = "r", log = logaxis) : need finite 'ylim' values
body: <p>I extract some stocks data from bloomberg. The dataset has removed NA and been set as time series. However, I'm trying to apply <code>charts.PerformanceSummary()</code>. But it shows an error in <code>plot.window(xlim, ylim, xaxs = "r", log = logaxis)</code>:</p>
  
  <blockquote>
    <p>need finite 'ylim' values</p>
  </blockquote>
  
  <p>Please tell me what I should do. (I'm just a beginner. Sorry for the unprofessional wording)</p>