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ee.Array.identity

Page Summary

The ee.Array.identity(size) method creates a 2D identity matrix of a specified size.
The size argument is an integer that determines the length of each axis of the matrix.
The method returns an Earth Engine Array.
Examples demonstrate how to use ee.Array.identity in JavaScript and Python, showing the output for various sizes including 0, 1, 2, and 3.

Creates a 2D identity matrix of the given size.

Usage	Returns
`ee.Array.identity(size)`	Array

Argument	Type	Details
`size`	Integer	The length of each axis.

Examples

Code Editor (JavaScript)

 // [] 
 print 
 ( 
 ee 
 . 
 Array 
 . 
 identity 
 ( 
 0 
 )); 
 // [[1]] 
 print 
 ( 
 ee 
 . 
 Array 
 . 
 identity 
 ( 
 1 
 )); 
 // [[1,0], 
 //  [0,1]] 
 print 
 ( 
 ee 
 . 
 Array 
 . 
 identity 
 ( 
 2 
 )); 
 // [[1,0,0], 
 //  [0,1,0], 
 //  [0,0,1]] 
 print 
 ( 
 ee 
 . 
 Array 
 . 
 identity 
 ( 
 3 
 ));

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)

 # [] 
 display 
 ( 
 ee 
 . 
 Array 
 . 
 identity 
 ( 
 0 
 )) 
 # [[1]] 
 display 
 ( 
 ee 
 . 
 Array 
 . 
 identity 
 ( 
 1 
 )) 
 # [[1, 0], 
 #  [0, 1]] 
 display 
 ( 
 ee 
 . 
 Array 
 . 
 identity 
 ( 
 2 
 )) 
 # [[1, 0, 0], 
 #  [0, 1, 0], 
 #  [0, 0, 1]] 
 display 
 ( 
 ee 
 . 
 Array 
 . 
 identity 
 ( 
 3 
 ))

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Page Summary

Examples

Code Editor (JavaScript)

Colab (Python)

ee.Array.identity