[R] pooling categories in a table

[Michael Friendly]

I have a large n-way contingency table, constructed as a table
object, and want to pool (collapse) some categories, summing the
frequencies in all collapsed cells.  How can I do this?

thx,
-Michael

-- 
Michael Friendly              friendly at yorku.ca
York University               http://www.math.yorku.ca/SCS/friendly.html
Psychology Department
4700 Keele Street             Tel:  (416) 736-5115 x66249
Toronto, Ontario, M3J 1P3     Fax:  (416) 736-5814
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