RosettaCodeData/Task/CSV-data-manipulation/J/csv-data-manipulation-4.j
2023-07-01 13:44:08 -04:00

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sumCSVrows=: writecsv~ (((<'SUM') ,~ {.) , [: (<"0)@(,. +/"1) makenum@}.)@readcsv
'rc_out.csv' sumCSVrows 'rc.csv'