Efficient way to sum multiple columns

2014-09-15 Thread jamborta
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Re: Efficient way to sum multiple columns

2014-09-15 Thread Xiangrui Meng
an array and running the sum function as follows: for (i - 0 until 10) yield { data.map(x = x(i)).sum } is their a better way to do this? thanks, -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Efficient-way-to-sum-multiple-columns-tp14281.html