Matlab函数"fit"是否有等效的GNU Octave? [英] Is there a GNU Octave equivalent for the Matlab function "fit"?

问题描述

我在信号分析课程中的老师给了我一些Matlab代码，我必须执行这些代码才能完成家庭作业.我一直在使用GNU Octave时没有遇到麻烦，但是这次有一条命令令我头疼.

My teacher in the signal analysis course has given me some Matlab code that I have to execute in order to complete a home assignment. I have always been using GNU Octave without troubles, but this time there is this command that is giving me headaches.

[c8,g8]=fit(time, sin_4_harmonic,’fourier8’)

我在GNU Octave中找不到函数"fit"，在以下URL中为Matlab引用了该函数:

I cannot find the function "fit" in GNU Octave, which is referenced for Matlab at the following url http://www.mathworks.se/help/curvefit/fit.html

有人知道我应该加载哪个软件包吗?或者是否有任何等同的软件包?

Does anyone knows which package should I load, or if there is any equivalent?

谢谢=)

推荐答案

据我所知，该功能在任何Octave软件包中均不存在.但是，查找类似内容的最佳位置是 optim软件包，可能是该函数 nonlin_curvefit .查看文档，模型fourier8的类型为Y = a0+a1*cos(x*p)+b1*sin(x*p)... +a8*cos(8*x*p)+b8*sin(8*x*p).

As far as I know, that function is not present in any of the Octave packages. However, the best place to look for something similar would be the optim package, probably the function nonlin_curvefit. Looking at the documentation, the model fourier8 is of the type Y = a0+a1*cos(x*p)+b1*sin(x*p)... +a8*cos(8*x*p)+b8*sin(8*x*p).

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