Highcharts activity gauge in Shiny
<p>I'm trying to make Activity gauge from Highcharts in Shiny with rCharts. Please, help.</p>

<pre><code>#server.R
library(shiny)
library(rCharts)

shinyServer(function(input, output) {
  output$chart &lt;- renderChart({
    a &lt;- Highcharts$new()
    a$series(data = 50, type = "solidgauge")
    a$addParams(dom = "chart")
    return(a)
    })
})
#ui.R
library(shiny)
library(rCharts)

shinyUI(bootstrapPage(
  chartOutput("chart", "highcharts")

))
</code></pre>