how can I manipulate data from csv file as below

week test test_end_date_time

201120 1 05-10-2011_16:47

201120 0 05-10-2011_16:48

201120 1 05-10-2011_16:49

201121 0 05-10-2011_15:47

201121 1 05-10-2011_15:48

201121 1 05-10-2011_15:49

201121 1 05-10-2011_15:50

note : when test is 1 mean pass, 0 mean fail

I waant use a perl script to calculate it so it become

week volume yield

201120 3 66.7%

201121 4 75.0%


Thank you very much

In reply to how do I manipulate data in csv file by Anonymous Monk

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