R = np.array([[0.62367947], [0.95427859], [0.97984112], [0.7025228], [
    0.86436385], [0.71010739], [0.98748138], [0.75198057]])
phase = np.array([[-1.0, 1.0, -1.0], [-1.0, 1.0, 1.0], [1.0, 1.0, 1.0], [
    1.0, -1.0, 1.0], [-1.0, -1.0, -1.0], [1.0, 1.0, -1.0], [1.0, -1.0, -1.0
    ], [-1.0, -1.0, 1.0]])
np.savetxt('R2.txt', np.hstack([R, phase]), fmt=['%0.8f', '%g', '%g', '%g'])
savetxt two columns in python,numpy