Skip to content

Pythoneo

Online How to Python stuff

How to save array as csv file with Numpy?

Posted on April 15, 2021March 2, 2023 By Luke K

Let’s learn how to save array as csv file with Numpy. We will use savetxt method.
Numpy savetxt as csv

How to use python savetxt method

Numpy savetxt function let us save Numpy array as text file. We can save an array as comma separated values as well.

To save an array to csv extension file you need to use savetxt file like in the below example.

import numpy as np

my_array = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9]).reshape(3, 3)
to_csv = np.savetxt("my_matrix.csv", my_array, delimiter=",")

Checking np.savetxt(“my_matrix.csv”, my_array, delimiter=”,”) you may know the syntax of savetxt method.

See also  How to convert Numpy array to Python list?
  • first one is file name, you can also put a path to the file here
  • my_array is an array to would like to dump as csv
  • delimiter is a comma since it is csv file
  • Using Numpy savetxt method you can also save your array as the other files like txt.

    numpy Tags:array, csv

    Post navigation

    Previous Post: How to generate random float in range with Numpy?
    Next Post: How to you find the cumulative sum in Python?

    Categories

    • bokeh (1)
    • datetime (3)
    • Django (5)
    • glob (1)
    • io (1)
    • json (1)
    • math (5)
    • matplotlib (10)
    • numpy (95)
    • OpenCV (1)
    • os (3)
    • Pandas (2)
    • paramiko (1)
    • pathlib (2)
    • Pillow (3)
    • Plotly (3)
    • Python (29)
    • random (7)
    • requests (1)
    • Scipy (4)
    • Seaborn (7)
    • shutil (1)
    • sqlite3 (1)
    • statistics (16)
    • sys (1)
    • Tkinter (9)
    • turtle (2)
    • Uncategorized (1)
    • urllib (1)
    • webbrowser (1)

    RSS RSS

    • How to create violin plot using seaborn?
    • How To Use Colormaps In Matplotlib?
    • How to calculate bonds in Python
    • How to handle trigonometry in Python
    • How to Convert Int to Binary in Python?
    • How to fix ValueError: The truth value of an array with zero elements is ambiguous?
    • How to solve NameError: name ‘numpy’ is not defined
    • How to insert seaborn lineplot?
    • How to Find the Length of an Array in Python?
    • How to reset secret key in Django

    Tags

    arithmetic mean array axis button calculations chart conversion copy count counter data type dictionary dimension draw error files fill float generate grid GUI image index integer list matrix max mean median min normal distribution plot random reshape rotate round size standard deviation string sum test text time variance zero

    Copyright © 2023 Pythoneo.

    Powered by PressBook WordPress theme

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
    Cookie settingsACCEPT
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT