Please do not take this file without mailing mackay@mrao.cam.ac.uk.
The code in it creates the Bayesian neural network simulator bigback. 

To unpack, 

	mkdir bb
	mv backup.tar.Z bb
	cd bb
	uncompress backup.tar.Z 
	tar xvf backup.tar

-------------------
bigback User Manual  (Extract)
-------------------

	Bigback is a non-linear data modelling tool combining 
Bayesian probability theory with neural networks. The program was 
used to create the winning entry in the 1993 energy prediction competition. 

	I am not a programmer, and the code and this manual are all
amateurly written. The code was written solely as a research tool.
Currently a professional programmer is rewriting this entire software,
and it will be released under the name BackproB by a company called
STAR.

	Bigback is (c) David J.C. MacKay (1991,1992,1993). Parts of
the code are based on numerical recipes algorithms. I wish to make my
bits of the existing code `Shareware'. You are free to look at my code
and to modify it as you wish; if you use it, please let me know you
are using it by dropping email to mackay@mrao.cam.ac.uk, and if
possible, please send me a contribution under the following
guidelines:

Academic users not involved in commercial products:     FREE
Industrial applications:                            500 pounds / $1000 p.a.
Financial markets:                                 1000 pounds / $3000 p.a.

My address is:
 David MacKay, Cavendish Laboratory, Madingley Road, Cambridge. CB3 0HE.
  United Kingdom. mackay@mrao.cam.ac.uk. 
Cheques in Sterling are preferred but U.S. dollars are OK too!

You may pass this software on to others, but you may not charge them 
for it. 

No warranty covers this code. I accept no responsibility 
for the code's failure to work as desired. 

Please do not contact me for technical support regarding this code.