What are ways of creating 1D, 2D and 3D arrays in NumPy?

1.	What are ways of creating 1D, 2D and 3D arrays in NumPy?
Answer» Consider you have a normal python list. From this, we can create NumPy arrays by making use of the array function as follows: One-Dimensional array import numpy as np arr = [1,2,3,4] #python list numpy_arr = np.array(arr) #numpy array Two-Dimensional array import numpy as np arr = [[1,2,3,4],[4,5,6,7]] numpy_arr = np.array(arr) Three-Dimensional array import numpy as np arr = [[[1,2,3,4],[4,5,6,7],[7,8,9,10]]] numpy_arr = np.array(arr) Using the np.array() function, we can create NumPy arrays of any dimensions.

Answer»

Consider you have a normal python list. From this, we can create NumPy arrays by making use of the array function as follows:

import numpy as np

arr = [1,2,3,4] #python list
numpy_arr = np.array(arr) #numpy array

import numpy as np

arr = [[1,2,3,4],[4,5,6,7]]
numpy_arr = np.array(arr)

import numpy as np

arr = [[[1,2,3,4],[4,5,6,7],[7,8,9,10]]]
numpy_arr = np.array(arr)

Using the np.array() function, we can create NumPy arrays of any dimensions.

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