使用Javascript预测二阶多项式序列中的下一个值 [英] Predict the next value in a 2nd order polynomial sequence with Javascript

问题描述

我想给一个Javascript函数一个数组，然后按照一段时间推断前进 -



例如



var numArray = [0,1,2,3,4,5]



var myFunction = function（array，period）{}



所以myFunction（numArray，7）将返回'6'而myFunction（numArray，8）将返回'7'



我想我可以使这个工作为线性最小二乘，但是我如何使它适用于二次多项式？



谢谢



MV

解决方案

这个例子是在c＃中，但文章中的代码应该是公平的易于翻译。



加权线性回归算法 [ ^ ]

I'd like to give a Javascript function an array and then extrapolate forwards by a number of periods -

eg

var numArray = [0,1,2,3,4,5]

var myFunction = function(array,period){}

So myFunction(numArray,7) would return '6' and myFunction(numArray,8) would return '7'

I think I can make this work for a linear least squares, but how would I make it work for a 2nd degree polynomial?

Thank you

MV

解决方案

This is example is in c#, but the code in the article should be fairly easy to translate.

An Algorithm for Weighted Linear Regression[^]

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