Remove all rows after a certain value in matlab matrix

Question

I have a MATLAB matrix that is 100,000x2 (100,000 rows, two columns)

How do I remove all the rows after row number 47,526?

In other words, I want to truncate the 100,000x2 matrix into a 47526x2 matrix

You can assign a new matrix to the rows you want using the `:` operator — Aidin, Jan 22 '17 at 19:54
Have you read https://www.mathworks.com/help/matlab/getting-started-with-matlab.html, particularly https://www.mathworks.com/help/matlab/learn_matlab/array-indexing.html? — beaker, Jan 22 '17 at 20:04
Possible duplicate of [Delete Specific Rows in Matlab](http://stackoverflow.com/questions/17227141/delete-specific-rows-in-matlab) — hbaderts, Jan 30 '17 at 05:53

score 2 · Answer 1 · edited Jan 24 '17 at 14:46

2

Assuming your matrix is named A:

A = A(1:47526, :);

edited Jan 24 '17 at 14:46

rayryeng

answered Jan 22 '17 at 20:00

Aidin

score 1 · Answer 2 · edited Jan 22 '17 at 20:51

1

YourMatrix(47527:end,:) = [] ;

edited Jan 22 '17 at 20:51

Luis Mendo

answered Jan 22 '17 at 19:56

Ofek Shilon

2 Answers2