vector2.addCell(1, 2);
vector2.addCell(2, 3);
SparseVectorWritable vector3 = new SparseVectorWritable();
vector3.setSize(size);
vector3.addCell(0, 3);
vector3.addCell(3, 5);
inputMatrix.put(0, vector0);
inputMatrix.put(1, vector1);
inputMatrix.put(2, vector2);
inputMatrix.put(3, vector3);
String matrixPath = baseDir + testDir + "inputMatrix";