ee.List.frequency

Returns the number of elements in list equal to element.
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 
 )); 

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)

 # An ee.Image list object. 
 ee_list 
 = 
 ee 
 . 
 List 
 ([ 
 0 
 , 
 1 
 , 
 2 
 , 
 2 
 , 
 3 
 , 
 4 
 ]) 
 print 
 ( 
 'List of integer:' 
 , 
 ee_list 
 . 
 getInfo 
 ()) 
 # 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:' 
 , 
 ee_list 
 . 
 frequency 
 ( 
 0 
 ) 
 . 
 getInfo 
 ()) 
 print 
 ( 
 'Frequency of value 2:' 
 , 
 ee_list 
 . 
 frequency 
 ( 
 2 
 ) 
 . 
 getInfo 
 ()) 
 print 
 ( 
 'Frequency of value 9:' 
 , 
 ee_list 
 . 
 frequency 
 ( 
 9 
 ) 
 . 
 getInfo 
 ()) 
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