<p>我想知道<a href="https://docs.scipy.org/doc/scipy/reference/generated/scipy.optimize.leastsq.html" rel="noreferrer">^{<cd1>}</a>和{a2}这两种方法有什么区别?在</p>
<p>当我实施它们时,它们产生的chi^2差异最小:</p>
<pre><code>>>> solution0 = ((p0.fun).reshape(100,100))
>>> # p0.fun are the residuals of my fit function np.ravel'ed as returned by least_squares
>>> print(np.sum(np.square(solution0)))
0.542899505806
>>> solution1 = np.square((median-solution1))
>>> # solution1 is the solution found by least_sq, it does not yield residuals thus I have to subtract it from the median to get the residuals (my special case)
>>> print(np.sum((solution1)))
0.54402852325
</code></pre>
<p>有谁能详细说明一下,或者指出我在哪里可以找到其他的文档,scipy的文档有点神秘。在</p>