Random number generation - with no repeats

[Ryan]

I want to generate a list of random numbers (36,000 of them) such that no two
are alike. I know how to do the random part [=RAND()*(b-a)+a] for random
numbers between a and b. Do you know how to ensure no two are alike?

I'm currently using the following formula

=ROUND(RAND()*(36000-0)+0,0)

 

[Joel]

Have two columns. First column Contains the random number. Next column has
the numbers 1 to 36,000. Then sort by the random numbers. The number 1 to
36,000 wil be now be random.

 

[Gary''s Student]

In A1 thru A36000 enter 1 thru 36000. In B1 thru B36000 enter:

=RAND()

Sort cols A & B by col B. This will "shuffle" the values in column A. If
you want 5 sample with no repeats, just pick the top 5 in column A. If you
want 10 samples with no repeats, just pick the top 10 in column A.......etc.

 

[Jim Cone]

The free "Special Randoms" workbook will do that.
Enter minimum and maximum numbers allowed and set size.
Numbers added to a new workbook - copy and paste where you want.
No registration required. Download from the Products page at my website ...
http://www.realezsites.com/bus/primitivesoftware
--
Jim Cone
Portland, Oregon USA
(Excel Add-ins / Excel Programming)



"Ryan" <[email protected]>
wrote in message
I want to generate a list of random numbers (36,000 of them) such that no two
are alike. I know how to do the random part [=RAND()*(b-a)+a] for random
numbers between a and b. Do you know how to ensure no two are alike?
I'm currently using the following formula

=ROUND(RAND()*(36000-0)+0,0)