Indiana University
University Information Technology Services
  
What are archived documents?
Login>>
Login

Login is for authorized groups (e.g., UITS, OVPIT, and TCC) that need access to specialized Knowledge Base documents. Otherwise, simply use the Knowledge Base without logging in.

Close

In Matlab, how can I sort all of the rows of a matrix according to one of the columns?

The Matlab function sortrows(A,j) sorts the rows of the matrix a based on the entries of the j-th column. For example, enter the following in Matlab:

A = [1 2 3 3 0 9 6 5 4] B = sortrows(A,2) C = sortrows(A,3)

You will receive the following output:

B = 3 0 9 1 2 3 6 5 4 C = 1 2 3 6 5 4 3 0 9

Note: Inputting sortrows(A,1) returns the same result as inputting sortrows(A).

For more about statistical and mathematical software, email the UITS Stat/Math Center, visit the center's web page, or phone 812-855-4724 (IUB) or 317-278-4740 (IUPUI). The center is located in Bloomington at 410 N. Park Avenue, and is open for consultation by appointment Monday-Friday 9am-5pm.

This is document afrd in domain all.
Last modified on February 03, 2011.

Comments/Questions/Corrections

Use this form to offer suggestions, corrections, and additions to the Knowledge Base. We welcome your input!

If you are affiliated with Indiana University and would like assistance with a specific computing problem, please use the Ask a Consultant form, or contact your campus Support Center.

Contact Information

Note: We will reply to your comment at this address. If your message concerns a problem receiving email, please enter an alternate email address.