MatrixAddFunction implements
MapFunction<Tuple2<Tuple2<Integer, DenseMatrix>, Tuple2<Integer, DenseMatrix>>,
Tuple2<Integer, DenseMatrix>> {
@Override
public Tuple2<Integer, DenseMatrix> map(
Tuple2<Tuple2<Integer, DenseMatrix>,
Tuple2<Integer, DenseMatrix>> tuple2Tuple2Tuple2) throws Exception {
Integer index = tuple2Tuple2Tuple2.f0.f0
int m = tuple2Tuple2Tuple2.f0.f1.numRows();
int n = tuple2Tuple2Tuple2.f0.f1.numCols();
double[] array1 = tuple2Tuple2Tuple2.f0.f1.toArray;
double[] array2 = tuple2Tuple2Tuple2.f1.f1.toArray();
...