Date: Oct 17, 2013 8:49 AM
Author: GEOINFORMATICS
Subject: Matrices manupulation

Hi, i have a large matrix with 4 columns only. i want to stack those rows which have the same entry at the 4th column. i have entries at 4th col like 0, 1, 34, etc...but they are at random positions. i want to stack them in order. Thanks