1stOpt 求助，求高手指导！！！！！
SharedModel;
Variable x,y(2);//y1,y2;
Parameter a,b,c,d;
Constant epsilon=0.3921,h0=6.3,R=125,Sf=0.03143,VR=1308.33,h1=3.82,Re=133,z0=134.91;
ConstStr z=z0-Sqrt(Re^2-x^2),Vx=h1*VR*(1+Sf)/(2*z),delta_f=15+9.2*epsilon^0.11,
p1=Exp(((a*Vx-VR*(1+Sf))*2*b*x)/(z^2)),p2=-(2/z)*Sqrt(Re^2-x^2),
p3=(4*b/(z^3))*(VR*(1+Sf)-a*Vx),p4=(-x/2)*Sqrt(Re^2-x^2)+((Re^2)/2)*(Arcsin(x/Re)),
p5=(1+4*Re/h1);
Function y1=(delta_f*p1)*(p2+p3*p4+p5);
y2=(delta_f*x)/(Sqrt(Re^2-x^2))+((2*d*y1)*(c*Vx-VR*(1+Sf)))/z;
Data;
//x,y1,y2
1.12891986062718e+000 6.40830449826990e+001 3.19723183391004e+001
2.25783972125436e+000 1.00069204152249e+002 3.47404844290657e+001
3.76306620209059e+000 8.56747404844291e+001 4.13840830449827e+001
5.01742160278746e+000 8.06920415224914e+001 2.58823529411765e+001
6.39721254355401e+000 7.62629757785467e+001 2.25605536332180e+001
7.77700348432056e+000 6.68512110726644e+001 1.75778546712803e+001
8.96864111498258e+000 5.96539792387543e+001 9.68858131487885e-001
1.02229965156794e+001 5.57785467128028e+001 -1.61937716262976e+001
1.16655052264808e+001 5.35640138408304e+001 -2.83737024221453e+001
1.28571428571429e+001 5.35640138408304e+001 -3.05882352941176e+001
1.42369337979094e+001 5.46712802768166e+001 -3.44636678200692e+001
1.54285714285714e+001 4.85813148788927e+001 -1.95155709342561e+001
1.67456445993031e+001 4.30449826989619e+001 -1.01038062283737e+001
1.75609756097561e+001 4.35986159169550e+001 -4.01384083044982e+000
运行后，只有y1拟合图像和a,b的估值， y2为一条等于零的直线，没有c和d的估值，请问这是怎么回事？ 是上面的代码哪里有问题吗？？？跪求指导！！！！！
返回小木虫查看更多
京公网安备 11010802022153号
盗版+版本低的原因：
均方差(RMSE):16.8998665796746
残差平方和(SSE):7996.95373150243
相关系数(R): 0.64889751043271
相关系数之平方(R^2): 0.421067979045769
确定系数(DC): 0.0369393179593926
F统计(F-Statistic): 1.8955009427535
参数 最佳估算
-------------------- -------------
a 0.889811601926988
b 0.00162580722812602
c 1.15072355472983
d 0.00336596535380272
====== 结果输出 ======
文件: 数据文件-1
No 目标 y1 计算 y1 目标 y2 计算 y2
1 64.083044982699 27.1022659714532 31.9723183391004 19.2079044662786
2 100.069204152249 40.8639262491168 34.7404844290657 27.1990479995981
3 85.6747404844291 63.588822702236 41.3840830449827 35.8254277668997
4 80.6920415224914 78.1728458803841 25.8823529411765 35.0215449363185
5 76.2629757785467 84.8190532252528 22.560553633218 25.3497389960066
6 66.8512110726644 81.9846606373267 17.5778546712803 11.1956626448538
7 59.6539792387543 74.6549102964756 0.968858131487885 -0.482941881027175
8 55.7785467128028 65.098650844115 -16.1937716262976 -9.97274052586747
9 53.5640138408304 54.5596714439447 -28.3737024221453 -16.9248818004721
10 53.5640138408304 47.3587938883414 -30.5882352941176 -20.203711545408
11 54.6712802768166 41.1038892038563 -34.4636678200692 -22.3618586087137
12 48.5813148788927 37.4257598677124 -19.5155709342561 -23.5847943184297
13 43.0449826989619 35.0029684499535 -10.1038062283737 -24.849095356772
14 43.598615916955 34.2715932752279 -4.01384083044982 -25.7687269916136，
代码没有问题。
1stopt版本原因。低版本不支持SharedModel。
你说自己用的是5.0版本，这是不可能的，网上能找到的最高到1.5。
你的问题可以用试用版解决：
Iterations: 20
Elapsed Time (Hr:Min:Sec:Msec): 00:00:06:342
Algorithms: Universal Global Optimation(UGO1)
Stop Reason: Convergence tolerance reached
Root of Mean Square Error (RMSE): 16.8998665796708
Residual Sum of Squares (SSE): 7996.95373149884
Correlation Coef. (R): 0.941605582652889
R-Square: 0.886621073283087
Determination Coef. (DC): 0.883913926992205
F-Statistic: 1.89550094274856
Parameters Best Estimate
-------------------- -------------
a 0.889811601928762
b 0.00162580722813606
c 1.15072355472944
d 0.00336596535381616
====== Output Results =====
File: Data file - 1
No Obs. y1 Cal. y1 Obs. y2 Cal. y2
1 64.083044982699 27.1022659715152 31.9723183391004 19.2079044663463
2 100.069204152249 40.8639262492391 34.7404844290657 27.199047
9997093
3 85.6747404844291 63.5888227024794 41.3840830449827 35.825427
767062
4 80.6920415224914 78.1728458807032 25.8823529411765 35.021544
9364615
5 76.2629757785467 84.8190532255592 22.560553633218 25.3497389960544
6 66.8512110726644 81.9846606375205 17.5778546712803 11.195662
6447939
7 59.6539792387543 74.6549102965342 0.968858131487885 -0.482941
881141063
8 55.7785467128028 65.0986508440345 -16.1937716262976 -9.972740
52598435
9 53.5640138408304 54.5596714437348 -28.3737024221453 -16.92488
18005384
10 53.5640138408304 47.3587938880552 -30.5882352941176 -20.20371
15454128
11 54.6712802768166 41.1038892035056 -34.4636678200692 -22.36185
86086396
12 48.5813148788927 37.4257598673193 -19.5155709342561 -23.58479
43182903
13 43.0449826989619 35.0029684495197 -10.1038062283737 -24.84909
53565655
14 43.598615916955 34.2715932747684 -4.01384083044982 -25.7687269913665
试用版：https://muchong.com/bbs/viewthread.php?tid=8050245
谢谢，网上下的，说是5.0的，以前没用过，也不知道是不是真的。。。
非常感谢提供的试用版本链接。。。