I'm adding some spatial statistics capabilities to grass and would

really like to include the ability to calculate critical values of

statistics in order to facilitate hypothesis testing (and to avoid

making the user look up stuff in tables of a stat book).

I've tried sci.math.stat, statlib (briefly), and comp.lang.c for info.

Since there are a fair number of experienced programmers on this list,

I was hoping that someone could provide useful suggestions.

Particularly, I'm looking at z statistics, Shapiro-Wilk coefficients

and critical values, K-S statistics, and possibly Chi-square. Has

anyone ever put any of these into programs? I assume that a practical

implementation would have to store tables, but are there any

public domain tables?

Darrell McCauley Department of Ag Engr, Purdue Univ

mccauley@ecn.purdue.edu West Lafayette, Indiana 47907-1146

** "Do what is important first, then what is urgent." (unknown) **