Quiver timeline, diachronic view - average values seem not to fit workflow values

[MareenGeestmann]

Example:
Metric: CER standard deviation
Document: Alberti, Leon Battista.

The last two values are equal in each workflow. Therefore colored yellow.
But in the average plot the last value is lower than the second last value. Therefore colored green.

Where does this difference in the data come from?

[MareenGeestmann]

In consultation with @mweidling, this is because the minimum workflow has two runs for 04.12.2023. Only one is visible in the graph, but presumably both are used for the calculation. Because the value in the minimum workflow is low, it pulls down the average. For 01.11.2023 there is only one run for all workflows.