unable to see variable in workspace.it only displays in command window.

Asked by sita on 12 Jun 2012
Latest activity Answered by sita on 13 Jun 2012

Hi, My code have 10 functions ..I am trying to save some variable in work space but itsaves only in command window.Please help me in this regards.

below piece of code is in one function..when i fix time to main function .I dont know how many times it is called.I want to store the value of "min_comp_op" every time.

for j=1:10
    for i= 1:5
        Id5(i)=i.*(w(i).^2)+(i+5).*(w(i+5).^2);
        Id5(i);
        tem=i.*(w(i).^2)+(i+5).*(w(i+5).^2);
        sumc=sumc+tem; 
    end    
    ttl=sumc;
    comb_ttl(j)=ttl;
end 
comp_op=min( comb_ttl);
min_comp_op=comp_op;
min_comp_op;

end

Thanking You, Sita

1 Comment

TAB on 12 Jun 2012

Variables can not be saved in Command window.
Your question question is incomplete. Please explore your question and add some lines of code (how you are saving variables) to make it meaningful.

See
http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

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2 Answers

Answer by TAB on 13 Jun 2012
Accepted answer

The scope of variables defined in the function is limited to that function only. Function variable will be deleted every time function is completed the execution and exited. So they will not appear in Workspace window.

See Base and Function Workspaces and other good reference here.

To save the function variable to base workspace use assignin() and evalin().

1 Comment

sita on 13 Jun 2012

Thanks for your answer...........

TAB
Answer by sita on 13 Jun 2012

Is there any other way to do this,i tried using assignin()

for j=1:10
    for i= 1:5
        Id5(i)=i.*(w(i).^2)+(i+5).*(w(i+5).^2);
        Id5(i);
        tem=i.*(w(i).^2)+(i+5).*(w(i+5).^2);
        sumc=sumc+tem; 
    end    
    ttl=sumc;
    comb_ttl(j)=ttl;
end 
comp_op=min( comb_ttl);
min_comp_op=comp_op;
min_comp_op;

assignin('base','min_comp_op',val)

it gives below error. Please help if i am using it wrongly

?? Undefined function or variable 'val'.

Error in ==> evaluate_objective at 57
                               assignin('base','min_comp_op',val)

Error in ==> initialize_variables at 55
      f(i,M + 1: K) = evaluate_objective(f(i,:));

Error in ==> nsga_2 at 62
chromosome = initialize_variables(pop);

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