Sorry, I don't understand what you want,
N random arrays? You can build an array of required length, bundle it to a cluster and repeat this X times (Depending on how many arrays you need). Each cluster can then in turn be grouped to an array, whereby each array retains its own length.
You can easily define an array as an array of floating point numbers. Is this what you mean? (See picture)
I also don't quite understand what the values 0 and 1 have to do with your question as a whole.....
Trying to help
Shane
Using LV 6.1 and 8.2.1 on W2k (SP4) and WXP (SP2)