Python numpy array to list

Ndarray to list

a = np.array([1, 2])
a.tolist()

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]]

Source: stackoverflow.com

From numpy to list python

import numpy as np

# 1d array to list
arr = np.array([1, 2, 3])
print(f'NumPy Array:\n{arr}')
#NumPy Array: [1 2 3]

list1 = arr.tolist()
print(f'List: {list1}')
#List: [1, 2, 3]

Source: journaldev.com

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'>

Source: stackoverflow.com

Python numpy matrix to list

import numpy as np
x = np.matrix([[1,2,3],
               [7,1,3],
               [9,4,3]])
y = x.tolist()

y --> [[1, 2, 3], [7, 1, 3], [9, 4, 3]]

Source: stackoverflow.com

List of array to array numpy

np.concatenate( list_of_array, axis=0 )

Similar codes

0 vote123 views1 answer
Python get timestamp of today
Python
2 votes116 views1 answer
Sqlite operational error no such column
Python
2 votes112 views2 answers
Get title attribute beautiful soup
Python
71 votes126 views6 answers
Virtual env in python
Python
2 votes128 views1 answer
Python private variables
Python
0 vote116 views1 answer
Error: The file/path provided (flaskr) does not appear to exist. Please verify the path is correct. If app is not on PYTHONPATH, ensure the extension is .py
Python
0 vote119 views1 answer
Dictionary lookup python
Python
30 votes107 views1 answer
If dir not exist mkdir python
Python
0 vote134 views1 answer
Connectionrefusederror at /accounts/signup/ django allauth
Python
3 votes123 views1 answer
Default argument in flask route
Python