title: Plot confidence interval, points and line
body: <p>I know there's a lot of question about this topic, but i can't find the answer i need. Years ago i used R, now i can't remember anything, but i'm sure is possible to draw a chart like this, with confidence intervals for every single points, and the main line between points (like in the screenshot). I already have all datas i need, pre calculated with spreadsheet. A simple example:</p>
  
  <ul>
  <li>points value (average of previous values): 4 (at 10 meters),5 (at 20 meters),6 (at 30 meters)</li>
  <li>confidence interval: 0.2 (for value 4), 0.5 (for value 5), 0.9 (for value 6)</li>
  </ul>
  
  <p>I need the syntax to draw a chart like this:<a href="https://i.stack.imgur.com/DD6sl.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DD6sl.jpg" alt="enter image description here"></a></p>