ee.FeatureCollection.aggregate_histogram

AI-generated Key Takeaways

• Aggregates a collection of objects to calculate a histogram of a specified property.

• Usage involves applying aggregate_histogram(property) to a FeatureCollection.

• The method takes a FeatureCollection and a String property name as arguments.

• It returns a Dictionary representing the histogram of the specified property.

Aggregates over a given property of the objects in a collection, calculating a histogram of the selected property.

Usage	Returns
FeatureCollection.aggregate_histogram(property)	Dictionary

Argument	Type	Details
this: collection	FeatureCollection	The collection to aggregate over.
property	String	The 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('Histogram of power plant capacities (MW)',
      fc.aggregate_histogram('capacitymw'));  // Dictionary

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('Histogram of power plant capacities (MW):',
        fc.aggregate_histogram('capacitymw'))  # Dictionary