Dear Rolf
You are right. However, In my case, the order of X and Y will be determined by a second (or nth) different vecor.
What I mean is: There might be an arrays, which will be processed later like 
[qw/A B C X K/][qw/A B Y I J/]

[download]
This means, that looking vertically at it: The Y comes before the X (right after B whereas the X comes after C) ...
I think, I am doing a really bad job in explaining ... But do you know what I mean?
Greetings, Jan
In another post, I have provided sample data, where the diff algorithm doesnt produce what I expect. I will try and check yours as soon as possible.
Jan

In reply to Re^4: Converting Arrays into Matrix by janDD
in thread Converting Arrays into Matrix by janDD

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