The following table contains a list of calculations you can perform in Grafana. You can find these calculations in the Transform tab and in the bar gauge, gauge, and stat visualizations.
|All nulls||True when all values are null|
|All zeros||True when all values are 0|
|Change count||Number of times the field’s value changes|
|Count||Number of values in a field|
|Delta||Cumulative change in value, only counts increments|
|Difference||Difference between first and last value of a field|
|Difference percent||Percentage change between first and last value of a field|
|Distinct count||Number of unique values in a field|
|First (not null)||First, not null value in a field|
|Max||Maximum value of a field|
|Mean||Mean value of all values in a field|
|Variance||Variance of all values in a field|
|StdDev||Standard deviation of all values in a field|
|Min||Minimum value of a field|
|Min (above zero)||Minimum, positive value of a field|
|Range||Difference between maximum and minimum values of a field|
|Step||Minimal interval between values of a field|
|Total||Sum of all values in a field|
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