24小时热门版块排行榜

返回列表

本帖产生 1 个博学EPI ，点击这里进行查看

少爷的猫咪儿

铁虫 (初入文坛)

应助: 0 (幼儿园)
金币: 877.8
帖子: 11
在线: 18.5小时
虫号: 1764694
注册: 2012-04-19
性别: MM
专业: 分离过程

[求助] matlab高手请进

function yy=modelyy(beta,X)
beta(1)=0.01;
beta(2)=0.01;
beta(3)=0.01;
beta(4)=1;
beta(5)=1;
beta(6)=1;
X=[0.8344 0.8344 0.83440.83440.83440.83440.83440.83440.643690.643690.643690.643690.643690.643690.643690.643690.475660.475660.475660.475660.475660.475660.475660.475660.313690.313690.313690.313690.313690.313690.313690.313690.193220.193220.193220.193220.193220.193220.193220.193220.076190.076190.076190.076190.076190.076190.076190.07619 ;
0.049170.049170.049170.049170.049170.049170.049170.049170.138180.138180.138180.138180.138180.138180.138180.138180.21660.21660.21660.21660.21660.21660.21660.21660.314250.314250.314250.314250.314250.314250.314250.314250.348430.348430.348430.348430.348430.348430.348430.348430.381620.381620.381620.381620.381620.381620.381620.38162;
0.116430.116430.116430.116430.116430.116430.116430.116430.218130.218130.218130.218130.218130.218130.218130.218130.307730.307730.307730.307730.307730.307730.307730.307730.372060.372060.372060.372060.372060.372060.372060.372060.458350.458350.458350.458350.458350.458350.458350.458350.542190.542190.542190.542190.542190.542190.542190.54219
];
x1=X(1,

;
x2=X(2,

;
x3=X(3,

;
yy=beta(1)*(x3.^beta(4)).*(x1.^beta(5))+beta(2)*(x2.^beta(6)).*(x1.^beta(5))+beta(3).*(x2.^beta(6)).*(x3.^beta(4)).*(x1.^beta(5))
y=[-0.74902-1.21407-1.4978-1.95223-2.62027-3.01185-3.44631-4.15718-6.0564-6.27541-6.16532-6.5302-6.91305-7.07083-7.25056-7.61826-7.83295-7.91387-8.01999-8.49233-8.77173-8.94295-9.28688-9.69684-8.68284-8.72517-8.88405-9.154-9.47245-9.78111-10.02589-10.63754-16.74253-16.70236-16.50356-16.67801-16.74365-16.73124-16.8439-16.90399-3.59452-3.48176-3.60582-3.53522-3.5045-3.65771-3.98316-4.26017
];
>> beta0=[0.01,0.01,0.01,1,1,1];
>> [beta,r,j] = nlinfit(X,y,modelyy,beta0)
运行结果
??? Error using ==> fcnchk
FUN must be a function, a valid string expression,
or an inline function object.
Error in ==> nlinfit at 72
model = fcnchk(model);
怎么回事啊

回复此楼