ee.Array

AI-generated Key Takeaways

• The ee.Array() function returns an array with given coordinate values.

• The values argument can be an existing array, a number, a list of numbers, or a nested list of numbers.

• The pixelType argument specifies the type of each number in the array, and if not provided, it will be inferred from the values.

• ee.Array can create empty arrays, 1-D arrays, and 2-D arrays.

• Arrays can be constructed from ee.Number objects or ee.List sequences.

Returns an array with the given coordinates.

Usage	Returns
ee.Array(values, pixelType)	Array

Argument	Type	Details
values	Object	An existing array to cast, or a number/list of numbers/nested list of numbers of any depth to create an array from. For nested lists, all inner arrays at the same depth must have the same length and numbers may only be present at the deepest level.
pixelType	PixelType, default: null	The type of each number in the values argument. If the pixel type is not provided, it will be inferred from the numbers in 'values'. If there aren't any numbers in 'values', this type must be provided.

Examples

Code Editor (JavaScript)

// Requires an explicit PixelType if no data.
print(ee.Array([], ee.PixelType.int8()));  // Empty []
print(ee.Array([[]], ee.PixelType.uint8()));  // Empty [[]]
print(ee.Array([[], []], ee.PixelType.float()));  // Empty [[], []]

// 1-D Arrays
print(ee.Array([0]));  // [0]
print(ee.Array([0, 1]));  // [0, 1]
// 2-D Arrays
print(ee.Array([[1]]));  // [[1]]
print(ee.Array([[0, 1], [2, 3]]));  // [[0,1],[2,3]]

// Arrays from ee.Number.
print(ee.Array([ee.Number(123).toUint8()]));  // [123]

// Lists are useful ways to construct larger Arrays.
print(ee.Array(ee.List.sequence(0, 10, 2)));  // [0,2,4,6,8,10]

// Arrays can be used to make Arrays.
var array1D = ee.Array([1, 2, 3]);
// This is a cast.
print(ee.Array(array1D));  // [1,2,3]

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)

# Requires an explicit PixelType if no data.
print(ee.Array([], ee.PixelType.int8()).getInfo())  # Empty []
print(ee.Array([[]], ee.PixelType.uint8()).getInfo())  # Empty [[]]
print(ee.Array([[], []], ee.PixelType.float()).getInfo())  # Empty [[], []]

# 1-D Arrays
print(ee.Array([0]).getInfo())  # [0]
print(ee.Array([0, 1]).getInfo())  # [0, 1]
# 2-D Arrays
print(ee.Array([[1]]).getInfo())  # [[1]]
print(ee.Array([[0, 1], [2, 3]]).getInfo())  # [[0,1],[2,3]]

# Arrays from ee.Number.
print(ee.Array([ee.Number(123).toUint8()]).getInfo())  # [123]

# Lists are useful ways to construct larger Arrays.
print(ee.Array(ee.List.sequence(0, 10, 2)).getInfo())  # [0, 2, 4, 6, 8, 10]

# Arrays can be used to make Arrays.
array_one = ee.Array([1, 2, 3])
# This is a cast.
print(ee.Array(array_one).getInfo())  # [1, 2, 3]