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ee.FeatureCollection.aggregate_total_var

  • Calculates the total variance of a specified property across objects in a FeatureCollection.

  • Takes a FeatureCollection and the name of the property as arguments.

  • Returns a single numerical value representing the total variance.

 Aggregates over a given property of the objects in a collection, calculating the total variance of the values of the selected property.

UsageReturns
FeatureCollection.aggregate_total_var(property)Number
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.varfc=ee.FeatureCollection('WRI/GPPD/power_plants').filter('country_lg == "Belgium"');print('Total variance of power plant capacities (MW)',fc.aggregate_total_var('capacitymw'));// 214307.38335169878

Python setup

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

importeeimportgeemap.coreasgeemap

Colab (Python)

# FeatureCollection of power plants in Belgium.fc=ee.FeatureCollection('WRI/GPPD/power_plants').filter('country_lg == "Belgium"')display('Total variance of power plant capacities (MW):',fc.aggregate_total_var('capacitymw'))# 214307.38335169878

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Last updated 2023-10-06 UTC.