AI-generated Key Takeaways
-
The
List.frequencyfunction returns the number of times a specific element appears in a list. -
It takes the list and the element to count as arguments.
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The function returns an integer representing the frequency of the element.
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Examples show how to use
List.frequencyin both JavaScript and Python.
| Usage | Returns |
|---|---|
List.
frequency
(element)
|
Integer |
| Argument | Type | Details |
|---|---|---|
|
this:
list
|
List | |
element
|
Object |
Examples
Code Editor (JavaScript)
// An ee.Image list object. var list = 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 ));
import ee import geemap.core as geemap
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 ))
