order_dates Value
1 2022-08-27 00:00:10 80.9
2 2022-08-27 00:16:40 81.6
3 2022-08-27 00:33:28 81.2
4 2022-08-27 05:37:12 81.4
5 2022-08-28 08:52:24 89.0
6 2022-08-28 09:50:28 100.6
7 2022-08-28 12:30:08 84.9
I would like to plot this data and display all times on the x-axis, however, I'd like to display the date once for every instance the date changes. So I would have a date marker corresponding to row 1 and row 5. How can I achieve this?