convert list into numpy array code example

Example 1: numpy list to array

# importing library 
import numpy  
  
# initilizing list 
lst = [1, 7, 0, 6, 2, 5, 6] 
  
# converting list to array 
arr = numpy.array(lst) 
  
# displaying list 
print ("List: ", lst) 
  
# displaying array 
print ("Array: ", arr)

Example 2: python numpy array to list

# Basic syntax:
numpy_array.tolist()

# Example usage:
your_array = np.array([[1, 2, 3], [4, 5, 6]])
your_array
--> array([[1, 2, 3],
           [4, 5, 6]])

your_array.tolist()
--> [[1, 2, 3], [4, 5, 6]]

Example 3: np list to np

import numpy as np
a = np.array( [[2,3,4], [3,4,5]] )

Example 4: convert list to nd array

numpy.asarray(arr, dtype=None, order=None)

Example 5: convert list of lists to numpy array matrix python

x=[[1,2],[1,2,3],[1]]
y=numpy.array([numpy.array(xi) for xi in x])
type(y)
# <type 'numpy.ndarray'>
type(y[0])
# <type 'numpy.ndarray'>

Example 6: list of list to numpy array

>>> lists = [[1, 2], [3, 4]]
>>> np.array(lists)
array([[1, 2],
       [3, 4]])