title: how to put two variables from a dataset on a bar graph stacked in R
body: <p>I am trying to put two variables of a datatable in a bar chart (available and unavailable) in percentage (y axis) and Date in x axis for each service (color in the plotly to differentiate the services). This is my datatable with respective variables.
  <a href="https://i.stack.imgur.com/rkIU6.png" rel="nofollow noreferrer">enter image description here</a></p>
  
  <p>And I am trying to combine these two variables in a single graph taking into account each service (Serie). At this moment I only got this:
  <a href="https://i.stack.imgur.com/II12f.png" rel="nofollow noreferrer">enter image description here</a></p>