def cohort_norm(self):
        for i in range(self.matrix.shape[0]):
            a = self.matrix[i,:]
            mn = a.mean()
            sd = a.std()
            self.matrix[i,:] = (self.matrix[i,:]-mn)/sd
dataset/ETHPy150Open bolme/pyvision/src/pyvision/analysis/bee.py/BEEDistanceMatrix.cohort_norm/original