I have a 1000X1000 matrix in a .txt. How do I parse it into a matrix in matlab?

My code here doesn't work. Attached in this image below is a example of 2X1000 matrix from a .txt file. I need to parse 1000X1000 numbers into 1000X1000 matrix in matlab.

For Example, the image given below is a .txt file. I need a parser That reads N and assigns N=4, Reads R, assigns R=[0,0]. Reads T, assigns T= [3,3; 2,3; 1,3; 1,3; 1,2; 2,2; 3,2; ]

Reads B and assigns B = [1,3,5,1; 4,1,2,10; 3,2,6,1000; 1,2,3,5]

Could someone guide me on how to do it? Thanks!!

[Emmanuel]

Edit: Added a clearer example

Answer 1

[KSSV]

Try the below code:

nx = 1000 ; ny = 1000 ;
txtfile=fopen('yourtxtfile','r');    % Open file
% Read matrix
[data,count] = fscanf(grdfile, '%f', [nx,ny]);
fclose(txtfile);

[Emmanuel]

Hi! Thank you for the reply, but the code is not working. It is reading only the first element.

Could you please help me out with that

[Image Analyst]

Attach your text file to make it easy for people to help you. Don't make it hard on them.

[Emmanuel]

I have attached as per your suggestion. Thanks!

[Image Analyst]

Where? I don't see any attachment. Please try again to edit and attach your file to your original post up at the top.

[Emmanuel]

Image attached below is the .txt file I have attached in my Question after editing. I would like to parse variables in matlab. For example: N=4, R = [0,0] etc.,

[KSSV]

Read about fscanf..