Animal Randomization program

[Claudio Martin]

What about using Excel? I use it to create block randomization for
animal studies. Put the labels to identify the animal groups in one
column. Create a suitable size block, then copy it several times so that
you have a total number greater than what you'll actually need. Fill the
next column with the formula "=rand()". That will put a random number
next to each animal label. Then copy that column and use 'paste special'
to convert the random number function to a fixed value. Finally sort
each block separately by the random number. Now you have a bunch of
blocks with each group represented in random order. Just work your way
down that list in order. If I understood your question correctly, each
of your blocks would represent a different weight range.
-- 
Claudio M. Martin, MD, MSc, FRCPC          _/_/   _/_/  _/_/_/_/_/ _/_/
Assistant Professor, Medicine/Physiology _/     _/         _/    _/
University of Western Ontario            _/     _/        _/     _/
519-667-6786 FAX 519-667-6748             _/_/   _/_/    _/       _/_/
Mail: Critical Care Trauma Centre, London Health Sciences Centre
      Victoria Campus, 375 South Street, London, Ontario, Canada N6A 4G5 
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