[OctDev] Probit analysis functions

[Rafael L. <rla...@us...>]

I wrote a set of Octave functions that implement a probit analysis, as
described in the book Finney, D.J. (1971) "Probit Analysis", Cambridge
University Press, 3rd ed.  Quantal response data for different conditions
are fitted with cumulative normal curves. The following statistical tests
are executed:

   1. Goodness of fit (chi square test)
   2. Parallelism of fitted curves (chi square test)
   3. Separation of parallel curves at P = 0.5 (Student t test)   

You will find the files at:

    http://people.debian.org/~rafael/probit/

The functions are extensively documented in texinfo (whose formatted output
appear as *.txt files in the website above) and there is a %!demo in
probit_analysis.m.  

I am planing to contribute this package to octave-forge, but I would
appreciate if any statisticians lurking this mailing list could give a look
at it before.  Is it okay if I add the files in a separate directory under
main/statistics, say main/statistics/probit?

-- 
Rafael