[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-10-06 UTC."],[[["\u003cp\u003e\u003ccode\u003eaggregate_sample_var\u003c/code\u003e calculates the sample variance of a specified property within a FeatureCollection.\u003c/p\u003e\n"],["\u003cp\u003eIt takes the FeatureCollection and the property name as input.\u003c/p\u003e\n"],["\u003cp\u003eThe result is a single number representing the sample variance of the selected property across all features in the collection.\u003c/p\u003e\n"],["\u003cp\u003eThis function is useful for understanding the spread or dispersion of a particular feature property within a dataset.\u003c/p\u003e\n"]]],[],null,["# ee.FeatureCollection.aggregate_sample_var\n\nAggregates over a given property of the objects in a collection, calculating the sample variance of the values of the selected property.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------------------------------------|---------|\n| FeatureCollection.aggregate_sample_var`(property)` | Number |\n\n| Argument | Type | Details |\n|--------------------|-------------------|----------------------------------------------------------|\n| this: `collection` | FeatureCollection | The collection to aggregate over. |\n| `property` | String | The property to use from each element of the collection. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// FeatureCollection of power plants in Belgium.\nvar fc = ee.FeatureCollection('WRI/GPPD/power_plants')\n .filter('country_lg == \"Belgium\"');\n\nprint('Sample variance of power plant capacities (MW)',\n fc.aggregate_sample_var('capacitymw')); // 217604.420018647\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\n# FeatureCollection of power plants in Belgium.\nfc = ee.FeatureCollection('WRI/GPPD/power_plants').filter(\n 'country_lg == \"Belgium\"')\n\nprint('Sample variance of power plant capacities (MW):',\n fc.aggregate_sample_var('capacitymw').getInfo()) # 217604.420018647\n```"]]
