The Comments per reviews graph displays, as its name implies, the number of interactions in code reviews. In addition, it is used to measure how much feedback your team members give to each other.
Depending on your preference, you can view this data by day, week or month. Please note that the display of the last six months or the last year does not allow the display by day.
Example of use
For the following graph, the displayed period is the last six months, and the display mode is by week. Overall, we can see that the code reviews merged per week have, on average, 2.2 comments. Although variations are inevitable, we see here good stability (according to the trend shown by the red dotted line).
Since this graph is interactive, hovering over it with your mouse will display more details for a given week (depending on the display mode selected).
Comments per merged pull request are an essential indicator of the quality of work delivered.
Psst! However, be careful not to have too many comments in code reviews. Sometimes adressing a topic verbally speeds up processing time and reduces the number of comments. Again, the key to success is good communication!
To learn more about the variation indicator and its calculation, check out this article!