Sign Up

Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.

Have an account? Sign In

Have an account? Sign In Now

Sign In

Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.

Sign Up Here

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask a question.

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

The Archive Base

The Archive Base Logo The Archive Base Logo

The Archive Base Navigation

  • Home
  • SEARCH
  • About Us
  • Blog
  • Contact Us
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • Add group
  • Groups page
  • Feed
  • User Profile
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Must read Questions
    • Hot Questions
  • Polls
  • Tags
  • Badges
  • Buy Points
  • Users
  • Help
  • Buy Theme
  • SEARCH
Home/ Questions/Q 684753
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Editorial Team
Asked: May 14, 20262026-05-14T01:51:07+00:00 2026-05-14T01:51:07+00:00

Okay this is werid, i keep getting the error, randomly. ValueError: matrix must be

  • 0

Okay this is werid, i keep getting the error, randomly.

ValueError: matrix must be 2-dimensional

So i tracked it down, and cornered it to basically something like this:

a_list = [[(1,100) for _ in range(32)] for _ in range(32)]
numpy.matrix(a_list)

Whats wrong with this? If i print a_list it is clearly a 2d matrix of tuples, however numpy does not believe so.

  • 1 1 Answer
  • 0 Views
  • 0 Followers
  • 0
Share
  • Facebook
  • Report

Leave an answer
Cancel reply

You must login to add an answer.

Forgot Password?

Need An Account, Sign Up Here

1 Answer

  • Voted
  • Oldest
  • Recent
  • Random
  1. Editorial Team
    Editorial Team
    2026-05-14T01:51:08+00:00Added an answer on May 14, 2026 at 1:51 am

    The easiest way around this is to just use a numpy array, instead of a numpy matrix:

    a_list = [[(1,100) for _ in range(32)] for _ in range(32)]
    arr=numpy.array(a_list)
    

    Numpy matrices are strictly 2-dimensional, and a_list is 3-dimensional. So numpy matrices are not an option.

    • 0
    • Reply
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
      • Report

Sidebar

Ask A Question

Stats

  • Questions 343k
  • Answers 343k
  • Best Answers 0
  • User 1
  • Popular
  • Answers
  • Editorial Team

    How to approach applying for a job at a company ...

    • 7 Answers
  • Editorial Team

    What is a programmer’s life like?

    • 5 Answers
  • Editorial Team

    How to handle personal stress caused by utterly incompetent and ...

    • 5 Answers
  • Editorial Team
    Editorial Team added an answer The variable you supply to the foreach loop has to… May 14, 2026 at 5:30 am
  • Editorial Team
    Editorial Team added an answer You need to use a Border to provide rounded corners,… May 14, 2026 at 5:30 am
  • Editorial Team
    Editorial Team added an answer You can use the mysql_fetch_object() function instead of mysql_fetch_array() and… May 14, 2026 at 5:30 am

Related Questions

For example I have the following tables resulting from: CREATE TABLE A (Id int,
I've been using Code::Blocks with MinGW on a WinXP box for a while now.
Pointless Dribble Okay This is another weird one from me, i want to thank
Okay, this one is REALLY weird. I'm using .net for my backend and Flex
Okay this is my 4th question today on Scheme, still pretty new to Scheme,

Trending Tags

analytics british company computer developers django employee employer english facebook french google interview javascript language life php programmer programs salary

Top Members

Explore

  • Home
  • Add group
  • Groups page
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Must read Questions
    • Hot Questions
  • Polls
  • Tags
  • Badges
  • Users
  • Help
  • SEARCH

Footer

© 2021 The Archive Base. All Rights Reserved
With Love by The Archive Base

Insert/edit link

Enter the destination URL

Or link to existing content

    No search term specified. Showing recent items. Search or use up and down arrow keys to select an item.