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yj112358

新虫 (小有名气)

[求助] 用1stopt自定义函数来拟合非线性曲线,函数中有复数,为什么得不到结果啊??? 已有1人参与

Title "nihe1";
//Variable v, y;
//Parameters kmax, sild, d;
//ComplexStr = i;
//Function y=-log((144115188075855872*((pi*d*v*(((73*cos(sild)^2)/50 + (157*sin(sild)^2)/100 - (696399286540865110016*kmax*(cos(sild)^2/4 + 1/4)*i)/(4*((3953038389996685*v)/2097152 - 5640985782525269495/1048576)^2 + 696399286540865110016))^2 - 8613675214697317/4503599627370496 + (827141916201971*i)/36028797018963968)*(830/191275789 - (138300*i)/191275789) - 5515945918567257/36028797018963968 + (41425875900405*i)/18014398509481984)/(2*(pi*d*v*(((73*cos(sild)^2)/50 + (157*sin(sild)^2)/100 - (696399286540865110016*kmax*(cos(sild)^2/4 + 1/4)*i)/(4*((3953038389996685*v)/2097152 - 5640985782525269495/1048576)^2 + 696399286540865110016))^2 - 8613675214697317/4503599627370496 + (827141916201971*i)/36028797018963968)*(830/191275789 - (138300*i)/191275789) - 7019031620356999/9007199254740992 - (1681342610122317*i)/1152921504606846976)) + (pi*d*v*(((73*cos(sild)^2)/50 + (157*sin(sild)^2)/100 + (696399286540865110016*kmax*(cos(sild)^2/4 + 1/4)*i)/(4*((3953038389996685*v)/2097152 - 5640985782525269495/1048576)^2 + 696399286540865110016))^2
- 8613675214697317/4503599627370496 - (827141916201971*i)/36028797018963968)*((138300*i)/191275789 + 830/191275789) - 5515945918567257/36028797018963968 - (41425875900405*i)/18014398509481984)/(2*(pi*d*v*(((73*cos(sild)^2)/50 + (157*sin(sild)^2)/100 + (696399286540865110016*kmax*(cos(sild)^2/4 + 1/4)*i)/(4*((3953038389996685*v)/2097152 - 5640985782525269495/1048576)^2 + 696399286540865110016))^2 - 8613675214697317/4503599627370496 - (827141916201971*i)/36028797018963968)*((138300*i)/191275789 + 830/191275789) - 7019031620356999/9007199254740992 + (1681342610122317*i)/1152921504606846976)))^2)/5563803990049631 + (144115188075855872*(((pi*d*v*(((73*cos(sild)^2)/50 + (157*sin(sild)^2)/100 - (696399286540865110016*kmax*(cos(sild)^2/4 + 1/4)*i)/(4*((3953038389996685*v)/2097152 - 5640985782525269495/1048576)^2 + 696399286540865110016))^2 - 8613675214697317/4503599627370496 + (827141916201971*i)/36028797018963968)*(830/191275789 - (138300*i)/191275789) - 5515945918567257/36028797018963968 +
(41425875900405*i)/18014398509481984)*i)/(2*(pi*d*v*(((73*cos(sild)^2)/50 + (157*sin(sild)^2)/100 - (696399286540865110016*kmax*(cos(sild)^2/4 + 1/4)*i)/(4*((3953038389996685*v)/2097152 - 5640985782525269495/1048576)^2 + 696399286540865110016))^2 - 8613675214697317/4503599627370496 + (827141916201971*i)/36028797018963968)*(830/191275789 - (138300*i)/191275789) - 7019031620356999/9007199254740992 - (1681342610122317*i)/1152921504606846976)) - ((pi*d*v*(((73*cos(sild)^2)/50 + (157*sin(sild)^2)/100 + (696399286540865110016*kmax*(cos(sild)^2/4 + 1/4)*i)/(4*((3953038389996685*v)/2097152 - 5640985782525269495/1048576)^2 + 696399286540865110016))^2 - 8613675214697317/4503599627370496 - (827141916201971*i)/36028797018963968)*((138300*i)/191275789 + 830/191275789) - 5515945918567257/36028797018963968 - (41425875900405*i)/18014398509481984)*i)/(2*(pi*d*v*(((73*cos(sild)^2)/50 + (157*sin(sild)^2)/100 + (696399286540865110016*kmax*(cos(sild)^2/4 + 1/4)*i)/(4*((3953038389996685*v)/2097152 -
5640985782525269495/1048576)^2+ 696399286540865110016))^2 - 8613675214697317/4503599627370496 - (827141916201971*i)/36028797018963968)*((138300*i)/191275789 + 830/191275789) - 7019031620356999/9007199254740992 + (1681342610122317*i)/1152921504606846976)))^2)/5563803990049631)/log(10)
Data;
v          y
2840   -0.00016
2844   -0.0003
2849   -0.0005
2854   -0.0008
2859   -0.0005
2864   -0.0003
2869   -0.00016
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yj112358

新虫 (小有名气)

刚开始提示没有参数被定义,然后我又补充了//ComplexStr = i;然后运行,出现结果如下:
Title "nihe1" = title nihe1
2840   -0.00016 = 2839.99984
2844   -0.0003 = 2843.9997
2849   -0.0005 = 2848.9995
2854   -0.0008 = 2853.9992
2859   -0.0005 = 2858.9995
2864   -0.0003 = 2863.9997
2869   -0.00016 = 2868.99984
2楼2015-05-03 14:41:02
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dingd

铁杆木虫 (职业作家)

【答案】应助回帖

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感谢参与,应助指数 +1
yj112358(月只蓝代发): 金币+5, 代发金币,鼓励应助 2016-11-30 13:30:05
"//"是注释符,都应该去掉。
老版本的话复数拟合应该不行吧。
3楼2015-05-03 19:13:15
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yj112358

新虫 (小有名气)

引用回帖:
3楼: Originally posted by dingd at 2015-05-03 19:13:15
"//"是注释符,都应该去掉。
老版本的话复数拟合应该不行吧。

1stopt 1.5的不能进行复数拟合吗?哪里有新版本的啊,网上下不了。
4楼2015-05-04 08:30:33
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dingd

铁杆木虫 (职业作家)

引用回帖:
4楼: Originally posted by yj112358 at 2015-05-04 08:30:33
1stopt 1.5的不能进行复数拟合吗?哪里有新版本的啊,网上下不了。...

应该不行。新版本问开发商,没有免费的。
5楼2015-05-04 10:28:30
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yj112358

新虫 (小有名气)

引用回帖:
3楼: Originally posted by dingd at 2015-05-03 19:13:15
"//"是注释符,都应该去掉。
老版本的话复数拟合应该不行吧。

迭代数: 37
用时: 0:04:18
RMSE: 3.60030246765816E-5
SSE: 1.01104987297278E-7
R: 0.9824906
DC: 0.9652878
kmax: -0.00728654
d: 0.07220375
sild: 4.672703
i: 0.6644424
为什么拟合结果里会有复数符号i 的值啊???
6楼2015-05-04 15:17:31
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