title: filtering based on user inputs in Shiny is not work
body: <p>User new to Shiny here. It is a very easy mode. But it's not work and it doesn't show any errors.</p>
  <p>The same result when I use subset function.</p>
  <p>Here's my code:</p>
  <pre><code>library(shiny)
  library(dplyr)
  
  # Define UI for application that draws a histogram
  ui &lt;- fluidPage(
  
      sidebarLayout(
          sidebarPanel(
              selectInput(&quot;variable&quot;, &quot;Variable:&quot;,colnames(iris))
          ),
  
          mainPanel(
              tableOutput(&quot;table&quot;)
          )
      )
  )
  
  server &lt;- function(input, output) {
  
      output$table &lt;- renderTable({
          
          iris %&gt;% dplyr::filter(input$variable&gt;=5)
          
          
      })
  }
  
  # Run the application 
  shinyApp(ui = ui, server = server)
  </code></pre>