Any help would be much appreciated! I have a matrix which is x rows by 3 columns. I want to...
...Keep ONLY pairs of rows with the same value in their first column (x,1), and delete the rest of the data. So, if a single row has a unique value, or three rows have the same value, they should be discarded. I only want pairs of rows with the same value in their first column.
I tried and look for days now and can't find anything to help.I attached a sample data matrix...thanks in advanced :)
Attachment: abcd.txt, URL: ,