title: Display actual values instead of coordinates when using ggplotly in combination with ggradar
body: <p>I use <code>ggradar</code> in combination with <code>plotly</code> to create a radar chart. After using <code>plotly</code> to obtain the hover-text ability I get the coordinates of every point when I mouse over each point but this does not make sense to me. How can I get the actual values instead of coordinates?</p>
  
  <pre><code>library(ggradar)
  library(dplyr)
  library(scales)
  library(tibble)
  library(plotly)
  mtcars_radar &lt;- mtcars %&gt;% 
    as_tibble(rownames = "group") %&gt;% 
    mutate_at(vars(-group), rescale) %&gt;% 
    tail(4) %&gt;% 
    select(1:10)
  
  p&lt;-ggradar(mtcars_radar)
  ggplotly(p)
  </code></pre>