Hello,
When using “Max age”, the value_min statistic returns false values, because there is no LOCF (last observation carried forward).
If a value stays longer than the maximum age, when a new value replaces it, the latter instantly becomes the minimum value, even if it’s higher than the previous one.
In the graph below :
- in pink the source values
- in blue the minimum value of the source values over the last 10 minutes.
You can see min_value go to 1, while the last minutes are at 0.