首先让我告诉我得到的可能不是我所期望的,也许你可以在这里帮助我.我有以下数据:
>>> x
array([ 3.08, 3.1 , 3.12, 3.14, 3.16, 3.18, 3.2 , 3.22, 3.24,
3.26, 3.28, 3.3 , 3.32, 3.34, 3.36, 3.38, 3.4 , 3.42,
3.44, 3.46, 3.48, 3.5 , 3.52, 3.54, 3.56, 3.58, 3.6 ,
3.62, 3.64, 3.66, 3.68])
>>> y
array([ 0.000857, 0.001182, 0.001619, 0.002113, 0.002702, 0.003351,
0.004062, 0.004754, 0.00546 , 0.006183, 0.006816, 0.007362,
0.007844, 0.008207, 0.008474, 0.008541, 0.008539, 0.008445,
0.008251, 0.007974, 0.007608, 0.007193, 0.006752, 0.006269,
0.005799, 0.005302, 0.004822, 0.004339, 0.00391 , 0.003481,
0.003095])
现在,我想用4度多项式拟合这些数据.所以我这样做:
>>> coefs …