evaluate dynamic variables in a loop and assign each one with optimvar.

Hi;

i created a number of variables like the following:

for j=1:N
       eval(['b' num2str(j) '= j']);
end

i need to assign each b1,b2,b3,.... as the following inside the loop.

b1=optimvar('b1','Type','integer','LowerBound',0,'UpperBound',1);
b2=optimvar('b2','Type','integer','LowerBound',0,'UpperBound',1);
.
.
.

please help.

[Walter Roberson]

Matt and I are unlikely to help you debug optimization code you have written that way.

http://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

[mohammad alquraan]

if there is different way no problem with it.

[Walter Roberson]

Cell array, or dynamic field names on a struct array.

[mohammad alquraan]

give me a hint how to start writing the code.

Answer 1

[infinity]

Hello,

This small example may help you

clear

N = 3;
b = cell(1,N);

for i = 1:N
    a = sprintf('b%d',i);
    b{i} = optimvar(a,'Type','integer','LowerBound',0,'UpperBound',1);
end

[mohammad alquraan]

thank you Trung VO DUY .