UC知道一个曲线拟合的问题,高手请指点~~~~
来源：百度知道 编辑：UC知道 时间：2024/05/01 00:06:42
各位高手,谁知道怎么把这两个相互对应的数组的曲线给我拟合出来.我采用了最小二乘法但是好象不对，它拟合的曲线不经过原点.谁知道帮忙给我拟合一下,用C/C++都可以!很急知道帮忙一下~~~小弟感激不尽.写好了，可以发到我的邮箱:duan.gexin@byd.com.cn
double X[21] = {0.00,0.056,0.112,0.168,0.224,0.280,0.336,0.392,0.448,0.504,0.560,
0.616,0.672,0.728,0.784,0.84,0.896,0.952,0.1008,0.1064,1.12}
double Y[21] = {0.00,1.66,3.31,4.96,6.6,8.22,9.82,11.4,12.94,14.43,15.86,17.22,18.5,
19.69,20.79,21.79,22.71,23.53,24.25,24.87,25.4};谢谢拉~~
double X[21] = {0.00,0.056,0.112,0.168,0.224,0.280,0.336,0.392,0.448,0.504,0.560,
0.616,0.672,0.728,0.784,0.84,0.896,0.952,0.1008,0.1064,1.12}
double Y[21] = {0.00,1.66,3.31,4.96,6.6,8.22,9.82,11.4,12.94,14.43,15.86,17.22,18.5,
19.69,20.79,21.79,22.71,23.53,24.25,24.87,25.4};谢谢拉~~
我拟合看了一下，这是由于数据中有“飞点”。你要手动处理掉这两个点。
（0.1008，24.25）（0.1064，24.87）
踢除这两点以后的拟合结果为：
y = 24.052x + 1.3588