How to sort one column of a matrix

I have a matrix that has 500 rows and 5 columns. I want to sort the matrix based on the 3 rd column. I mean rearrange the matrix based on the 3rd column descending.

Answer 1

[Stephan]

B = sortrows(A,-3)

[Zeynab Mousavikhamene]

Does not work. -3 gives Dimension argument must be a positive integer.

If you go by 3: it wont sort based on the 3 rd column. "B = sort(A,dim) returns the sorted elements of A along dimension dim. For example, if A is a matrix, then sort(A,2) sorts the elements of each row." Look here: https://www.mathworks.com/help/matlab/ref/sort.html

[Stephan]

note that i used

sortrows

instead of

sort

[Zeynab Mousavikhamene]

Thanks!