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Stopping intlinprog if fval isn't changing

1 次查看（过去 30 天）
yvlu
yvlu 2015-3-12
评论： Alan Weiss 2015-3-13
Dear All
I'm quite new to Matlab and I'm using it for optimizations. Now I'm trying to define some stopping criteria but I don't get it. How can i stop a intlinprog function if my fval value isn't changing over a certain amount of nodes? Is that even possible?
This is my code so far:
clear all
A = xlsread('Daten_jpd.xlsm','A');
Aeq = xlsread('Daten_jpd.xlsm','Aeq');
beq = xlsread('Daten_jpd.xlsm','beq');
b = xlsread('Daten_jpd.xlsm','b');
lb=xlsread('Daten_jpd.xlsm','lb');
ub=xlsread('Daten_jpd.xlsm','ub');
c=xlsread('Daten_jpd.xlsm','c');
intcon=xlsread('Daten_jpd.xlsm','intcon');
[x,valuef]=intlinprog(c,intcon,A,b,Aeq,beq,lb,ub);
I tried to use
options = optimoptions(@intlinprog,'OutputFcn',@stopFcn);
to include a stop Function, but there i got an error:
Error using optimoptions (line 105)
'OutputFcn' is not an option for INTLINPROG.
A list of options can be found on the INTLINPROG documentation page.
Thanks a lot for your Help!
Cheers yvlu

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回答（1 个）

Alan Weiss
Alan Weiss 2015-3-12
You probably have MATLAB R2014a, which does not have output function support for intlinprog. See the release notes.
Alan Weiss
MATLAB mathematical toolbox documentation
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yvlu
yvlu 2015-3-13
Yeah I updated my version to 2015, so I can use an output function now. But I don't know how to formulate this function. When I try to use the otptimValues.fval i always get an error.
Alan Weiss
Alan Weiss 2015-3-13
Read the documentation carefully.
Alan Weiss
MATLAB mathematical toolbox documentation

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