ee.FeatureCollection.aggregate_array

  • The aggregate_array function on a FeatureCollection gathers all values for a specified property from objects in the collection.

  • This function takes a FeatureCollection and a string representing the property name as arguments.

  • It returns a list containing the values of the specified property from each element in the collection.

 Aggregates over a given property of the objects in a collection, calculating a list of all the values of the selected property.

UsageReturns
FeatureCollection.aggregate_array(property)List
ArgumentTypeDetails
this: collectionFeatureCollectionThe collection to aggregate over.
propertyStringThe property to use from each element of the collection.

Examples

Code Editor (JavaScript)

// FeatureCollection of power plants in Belgium.
var fc = ee.FeatureCollection('WRI/GPPD/power_plants')
             .filter('country_lg == "Belgium"');

print('Power plant fuel sources',
      fc.aggregate_array('fuel1'));  // ee.List

Python setup

See the Python Environment page for information on the Python API and using geemap for interactive development.

import ee
import geemap.core as geemap

Colab (Python)

# FeatureCollection of power plants in Belgium.
fc = ee.FeatureCollection('WRI/GPPD/power_plants').filter(
    'country_lg == "Belgium"')

display('Power plant fuel sources:',
        fc.aggregate_array('fuel1'))  # ee.List