slp error matlab function

2021 3 8
1 个回答
回答已采纳
更新时间：2021 3 8
8 次查看（30 天）

0 个投票

I have error on my code.This slp method to minimize function
clear;
clc;
x=[1;1];
dxlb=[-1;-1];
dxub=[1;1];
Tolx=0.01;
TolCon=0.01;
[f,g]=f_SLPclass(x);
[gradf,gradg]=g_SLPclass(x);
coverged=false;
iter=0;
while converged
c=gradf';
a=gradg';
b=-g;
dx=linprog(c,a,b,[],[],dxlb,dxub);
x=x+dx;
[f,g]=f_SLPclass(x);
[gradf,gradg]=g_SLPclass(x);
iter=iter+1;
converged=max(abs(dx)<Tolx)&& max(g)<TolCon;
end
fprintf('\n number of iteration %f\n',iter);
fprintf('\n Optimum Point: (%f,%f,%f,%f,%f)\n',x1,x2,x3,x4,x5);

2 个评论
显示 无 隐藏 无

Matt J
Matt J 2021-3-8
What error?
Ous Chkiri
Ous Chkiri 2021-3-8
Error using SLP>f_SLPclass
Too many output arguments.
Error in SLP (line 8)
[f,g]=f_SLPclass(x);

请先登录，再进行评论。

请先登录，再回答此问题。

 采纳的回答

Matt J
Matt J 2021-3-8
编辑：Matt J 2021-3-8

0 个投票

Your functions f_ and g_SLPclass have missing parts.
function [f,g]=f_SLPclass(x) %return outputs
assert(length(x)==5, "x should be 5 elements long, but instead it is length " + length(x));
xcell=num2cell(x);
[x1,x2,x3,x4,x5]= deal(xcell{:});
f=0.0624*(x1+x2+x3+x4+x5);
g=-1+61/x1^3 +37/x2^3 +19/x3^3 +7/x4^3 +1/x5^3;
end

6 个评论
显示 4更早的评论 隐藏 4更早的评论

Ous Chkiri
Ous Chkiri 2021-3-8
same error : Error
using SLP>f_SLPclass (line 28)
x should be 5 elements long, but it is only length 2
Error in SLP (line 8)
[f,g]=f_SLPclass(x);
Matt J
Matt J 2021-3-8
It is not the same error message.
Ous Chkiri
Ous Chkiri 2021-3-8
clear;
clc;
x=[1;1];
dxlb=[-1;-1];
dxub=[1;1];
Tolx=0.01;
TolCon=0.01;
[f,g]=f_SLPclass(x);
[gradf,gradg]=g_SLPclass(x);
coverged=false;
iter=0;
while converged
c=gradf';
a=gradg';
b=-g;
dx=linprog(c,a,b,[],[],dxlb,dxub);
x=x+dx;
[f,g]=f_SLPclass(x);
[gradf,gradg]=g_SLPclass(x);
iter=iter+1;
converged=max(abs(dx)<Tolx)&& max(g)<TolCon;
end
fprintf('\n number of iteration %f\n',iter);
fprintf('\n Optimum Point: (%f,%f,%f,%f,%f)\n',x1,x2,x3,x4,x5);
function [f,g]=f_SLPclass(x) %return outputs
assert(length(x)==5, "x should be 5 elements long, but instead it is length " + length(x));
xcell=num2cell(x);
[x1,x2,x3,x4,x5]= deal(xcell{:});
f=0.0624*(x1+x2+x3+x4+x5);
g=-1+61/x1^3 +37/x2^3 +19/x3^3 +7/x4^3 +1/x5^3;
end
function [gradf,gradg]=g_SLPclass(x)
assert(length(x)==5, "x should be 5 elements long, but it is only length " + length(x));
xcell=num2cell(x);
[x1,x2,x3,x4,x5]= deal(xcell{:});
gradf=0.312;
gradg=-183/x1^4 - 111/x2^4 -57/x3^4 -21/x4^4 -3/x5^4;
end
Ous Chkiri
Ous Chkiri 2021-3-8
I just run it and it gives me the same error :
Error using SLP>f_SLPclass (line 28)
x should be 5 elements long, but instead it is length 2
Error in SLP (line 8)
[f,g]=f_SLPclass(x);
Ous Chkiri
Ous Chkiri 2021-3-8
Yes your right Sorry. It gives another error

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Creating, Deleting, and Querying Graphics Objects 的更多信息

产品

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by