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ee.List.frequency

  • TheList.frequency function returns the number of times a specific element appears in a list.

  • It takes the list and the element to count as arguments.

  • The function returns an integer representing the frequency of the element.

  • Examples show how to useList.frequency in both JavaScript and Python.

 Returns the number of elements in list equal to element.

UsageReturns
List.frequency(element)Integer
ArgumentTypeDetails
this:listList
elementObject

Examples

Code Editor (JavaScript)

// An ee.Image list object.varlist=ee.List([0,1,2,2,3,4]);print('List of integers',list);// The ee.List.frequency function is used to determine how many times a value is// present in a list, e.g. what is the frequency of 0, 2, and 9 in the list.print('Frequency of value 0',list.frequency(0));print('Frequency of value 2',list.frequency(2));print('Frequency of value 9',list.frequency(9));

Python setup

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

importeeimportgeemap.coreasgeemap

Colab (Python)

# An ee.Image list object.ee_list=ee.List([0,1,2,2,3,4])display('List of integer:',ee_list)# The ee.List.frequency function is used to determine how many times a value is# present in a list, e.g. what is the frequency of 0, 2, and 9 in the list.display('Frequency of value 0:',ee_list.frequency(0))display('Frequency of value 2:',ee_list.frequency(2))display('Frequency of value 9:',ee_list.frequency(9))

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Last updated 2023-10-06 UTC.