ee.Array.subtract

  • The subtract method performs element-wise subtraction between two values.

  • It takes two Array inputs, a left-hand value (this) and a right-hand value (right).

  • The method returns a new Array containing the results of the subtraction.

  • The subtract method can handle both scalar and array subtraction.

  • The examples demonstrate subtraction with single-element arrays, multi-element arrays, and empty arrays.

 On an element-wise basis, subtracts the second value from the first.

UsageReturns
Array.subtract(right)Array
ArgumentTypeDetails
this: leftArrayThe left-hand value.
rightArrayThe right-hand value.

Examples

Code Editor (JavaScript)

print(ee.Array([10]).subtract(1));  // [9]

print(ee.Array([-1, 0, 1]).subtract(2));  // [-3,-2,-1]
print(ee.Array([-1, 0, 1]).subtract([-5, 6, 7]));  // [4,-6,-6]

var empty = ee.Array([], ee.PixelType.int8());
print(empty.subtract(empty));  // []

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([10]).subtract(1))  # [9]

display(ee.Array([-1, 0, 1]).subtract(2))  # [-3, -2, -1]
display(ee.Array([-1, 0, 1]).subtract([-5, 6, 7]))  # [4, -6, -6]

empty = ee.Array([], ee.PixelType.int8())
display(empty.subtract(empty))  # []