Can anyone help with this?

I wish to use say 16 numbers in groups of 4 on 5 seperate occasions and not
have the same number apear twice with any other numer used previously?

Is this able to be done or am I expecting too much!

Hmmm... 5 groups of 4 numbers out of 16 without duplication isn't
possible (you'd need at least 20).

You might find one of the techniques here helpful:

http://mcgimpsey.com/excel/udfs/randint.html



In article ,
xpert 1 <xpert wrote:

Can anyone help with this?

I wish to use say 16 numbers in groups of 4 on 5 seperate occasions and not
have the same number apear twice with any other numer used previously?

Is this able to be done or am I expecting too much!

Thanks JE McGimpsey, that sort of helps but it still is useing the same
number more than once. Where I am trying to use this is in the form of a golf
trip with 16 players playing in groups of 4 over 5 days, so as not to have
anyone of the 4 in the group playing with someone they have already played
with over the 5 days of golf, that is so everybody plays with someone once
only?
--
Thanks from down under!!


"xpert 1" wrote:

Can anyone help with this?

I wish to use say 16 numbers in groups of 4 on 5 seperate occasions and not
have the same number apear twice with any other numer used previously?

Is this able to be done or am I expecting too much!

I really don't know any formulaic way to do this in XL.

In article ,
xpert 1 wrote:

Thanks JE McGimpsey, that sort of helps but it still is useing the same
number more than once. Where I am trying to use this is in the form of a golf
trip with 16 players playing in groups of 4 over 5 days, so as not to have
anyone of the 4 in the group playing with someone they have already played
with over the 5 days of golf, that is so everybody plays with someone once
only?