Scipy Leastsq 可选输出变量 (Mesg) [英] Scipy Leastsq Optional Output Variable (Mesg)

问题描述

SciPy 关于 LeastSq 的文档在这里.它指出 ier 是

SciPy's documentation on LeastSq is here. It states that ier is

一个整数标志.如果它等于 1、2、3 或 4，则找到了解决方案.否则，找不到解决方案.无论哪种情况，可选的输出变量mesg"都会提供更多信息.

An integer flag. If it is equal to 1, 2, 3 or 4, the solution was found. Otherwise, the solution was not found. In either case, the optional output variable ‘mesg’ gives more information.

但是我如何检索可选变量 mesg?

But how do I retrieve the optional variable mesg?

x,ier=leastsq(residuals, plsq, args=(x_vals, y_vals)) 只给了我两次回报

x,mesg,ier=leastsq(residuals, plsq, args=(x_vals, y_vals)) 给出错误信息 ValueError: need more than 2 values to unpack在那条线上.

x,mesg,ier=leastsq(residuals, plsq, args=(x_vals, y_vals)) gives the error message ValueError: need more than 2 values to unpack on that line.

推荐答案

使用 full_output 参数:

import scipy.optimize as optimize
p,cov,infodict,mesg,ier = optimize.leastsq(
    residuals,p_guess,args=(x,y),full_output=True)

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