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# to you under the Apache License, Version 2.0 (the
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#
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# Utility script to return for each row the column nbr with the largest value. If all the values in
# a row are the same, then the largest column nbr is returned.
#
# Parameters:
#    I       : (input)  filename of input
#    O       : (output) filename of output
#    ofmt    : default "csv"; format of O: "csv", "binary"
#
# Example:
#   hadoop jar SystemDS.jar -f algorithms/utils/rowIndexMax.dml -nvargs I="/tmp/X.mtx" O="/tmp/X2.mtx"
#

ofmt = ifdef($ofmt, "csv")

M = read($I)
C = rowIndexMax(M)
write(C, $O, format=ofmt)
