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group10
2006 Apr 19
1
about "intersection set" and "union set"
Hello sir:
group1:1,2,3,4
group2:1,3,4,5
group3:2,4,8,9
.. ...
group1000:9,3,8,2
I wanna get the "intersection set" and "union set". I've tried command "setdiff"and "union",but only two groups is permited.How can I deal with multi groups to find the "intersection set" and "union set"?
Thanks a lot!
My...