I am sorry if this question is asked before, but I couldn't find any relevant discussion.
I have an array 400x3 Array{Any,2} . First two columns consist of numbers,
and third column consists of strings. I want to first sort this array with
respect to third column and then with respect to first column and then with
respect to second column. The final result should be like:
1 -1 "A"
1 1 "A"
2 0 "A"
5 3 "B"
6 3 "C"
Thanks.
