title: Shiny plot not showing
body: <p>My code looks like this: </p>
  
  <pre><code>shinyServer(function(input, output) {
      DataRead &lt;- reactive(input$PlotType)
      CR &lt;- reactive(as.character(input$ContributionRate))
      PlotData &lt;- reactive(get(paste(CR(),DataRead(),sep="")))
      output$gPlot &lt;- renderGvis({gvisLineChart(PlotData(),
          options=...)
      })
  })
  </code></pre>
  
  <p>I'm assuming the <code>get()</code> function isn't passing the data.frame through to <code>PlotData()</code>, which makes the HTML render blank. </p>
  
  <p>My <code>ui.R</code> is using <code>htmlOutput()</code>.</p>
  
  <p>Anyone know what the issue is? </p>