🚀 go-pugleaf

For a graduate-level class on Software Quality Assurance,

I need a package that will:
       	* Draw (and print -- although that's much the same on the Mac)
       	scatter plots for a set of data.
       	* Allow me to key in the data (or import it from some other
       	source, say a text file).
       	* Perform a least-squares fit on the data, and graph the result.
       	* Allow me to stratify the data and plot it, such that
       	the data points are divided into a number of groups,
       	based on input conditions.
        * Support cut/paste so that I can grab the graphs and the data,
       	and put the results into a word-processr document.

Basically, I think I need a statistics package.  Or, perhaps a
spreadsheet will do the trick.  Anyway, statistics are generally way
out of my league, so I am requesting advice.  What package should I
get (or at least look at)?  Are there any PD/Shareware/Freely Redistributable
statistics packages or spreadsheets out there? Any cheap commercial packages?
Perhaps a combination of packages (math and graphing)?

Thanks in advance (the net and all the nice people who post form
a wonderful resource).

-Eric


PS: Thanks for all those who responsed to my previous request on Tek 4010
terminal emulators (either Versaterm or uw seem to be the most-recommended
responses).

-- 
Eric F. Johnson          | Phone +1 612-894-0313             | Are we
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