Statistics available in aggregation calculation:

    • minimum
    • maximum
    • count
    • total
    • sample variance
    • standard deviation
    • mean
    • median
    • total area per m2
    • total per ha
  1. Add a new task
  2. Select layer of source attribute
  3. Select source attribute (i.e. the attribute which statistics will be calculated)
  4. Select target layer (i.e. layer on which level will be statistics aggregated)
  5. Set whether replace results of type NULL with 0
  6. Tag those statistics to be calculated
  7. For each selected statistic there will be one new attribute created in the target layer and filled with calculation result. You can see a preview of new attributes and optionally, you can change their names and labels.
  8. Optionally, you can specify SQL query filtering entities of source layer used for statistics calculations
  9. Click Perform task button


  1. New attributes are added to structure of target layer containing calculated statistics

Screen from Field-Map Data Collector