data.resize(1,0);
int sumSharedA, sumSharedB, sumSharedAB, tempA, tempB;
sumSharedA = 0; sumSharedB = 0; sumSharedAB = 0;
/*Xi, Yi = abundance of the ith shared OTU in A and B
data.resize(1,0);
int sumSharedA, sumSharedB, sumSharedAB, tempA, tempB;
sumSharedA = 0; sumSharedB = 0; sumSharedAB = 0;
/*Xi, Yi = abundance of the ith shared OTU in A and B