Asked by Baran Mehrdad
on 9 Aug 2018

this is the way I defined b_ineaualty_sec5 :

[b_ineq_sec5]=load_kw* ones(N_time_slots,1);

and this is the way I defined A_inequality_sec5 :

temp2=eye(N_time_slots);

[A_ineq_sec5]=generate_Cplx_Constraint_format( Vars_size, [3;9],-temp2,temp2);

the relationship between A and b is Ax=<b which A is a inequlity vector and B is a RHS and x is variable. I know the problem is with the size of b and A , but how should I define b ?

and this is vars_size and generate_cplex_format functions:

function [Vars_size]= create_variable_bundle(N_time_slots)

Vars_size=[1;N_time_slots;N_time_slots; N_time_slots; N_time_slots; N_time_slots; N_time_slots;N_time_slots;N_time_slots;N_time_slots;N_time_slots;N_time_slots ];

end

function [A_block]=generate_Cplx_Constraint_format( Vars_size, Var_select,varargin)

total_size=sum(Vars_size);

temp1= tril(ones(numel(Vars_size),numel(Vars_size)))*Vars_size;

temp1(numel(Vars_size))=[];

Start_ind= [0;temp1]+1;

temp2=size( varargin{1} ,1);

A_block=zeros(temp2,total_size);

% A x+ By < b

for i=1: numel(Var_select),

A_block(:,Start_ind(Var_select(i)): Start_ind(Var_select(i))+ Vars_size(Var_select(i))-1 )=varargin{i};

end

end

Answer by Ameer Hamza
on 9 Aug 2018

Accepted Answer

Baran Mehrdad
on 9 Aug 2018

yes you were right. it's not scalar .and your alternative soulotion also worked and there is no sign of that error anymore. could you plz explain it ? and also i have a new error at the end of my code , new error is :

how can i solve it? it's again related to the m file that i sent before

Ameer Hamza
on 9 Aug 2018

.* is element-wise multiplication whereas * is matrix multiplication. The second operator requires the matrix dimensions to be consistent.

While for your 2nd error, It seems that you might be accidentally mixing ',' and ';'. , add elements to same row while ; creates a new row. You can add a breakpoint at that line to diagnose the error.

Baran Mehrdad
on 9 Aug 2018

thank you for the feedback. your information was so useful to me. regards

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