Welcome to the question-posting realm. You can use Index() if you set up the table calculation correctly for the situation on your tab. Unfortunately, I'm at a loss on how to get the line to appear continuous--I believe it's due to the fact that each hour has to be its own element in the table calc (to be desc. ordered by Wh).
Hope this helps.
Awesome, that did the trick. I had read a bit on partitioning and addressing wrt table calcs but didn't understand it well enough to implement it.
The only part that I haven't quite figured out (and maybe it's b/c we're using different versions of Tableau? I'm 8.0.2 Desktop) is where you mention getting the line to appear continuous. In your "Sort using Rank" tab it shows up as a continuous line when I view it.
Thanks for the help,