Hi,

Given the following:

Group 1 - Tests Totals:
(A, 4)
(B, 30)
(C, 40)
(D, 30)

Group 2 - Tests Passed:
(A,1)
(B,30)

How would I calculate the percentage of Group 2 / Group 1 using Pig?  I'm
assuming one way is to join on the the two datasets and calculate the
percentage that way.  Another way is to use a custom UDF.  Is there a better
way than either of these?

Many thanks,
Jon.

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