Vectors must be the same length.

Hello everyone, can you please help me with this problem? I currently in my project's for Iterative Method. But I can't run the coding because of this problem.

plot(Iteration,totalCost_iteration);

Attached below is my full coding, can you guys help me?

clear clc;

%  n    alpha	beta	gamma	min max
d=[1	550     8.1000	0.00028	0   680
   2	309     8.1000	0.00056	0   360
   3	307     8.1000	0.00056	0   360
   4	240     7.7400	0.00324	60  180
   5	240     7.7400	0.00324	60  180
   6	240     7.7400	0.00324	60  180
   7	240     7.7400	0.00324	60  180
   8	240     7.7400	0.00324	60  180
   9	240     7.7400	0.00324	60  180
   10	126     8.6000	0.00284	40  120
   11	126     8.6000	0.00284	40  120
   12	126     8.6000	0.00284	55  120
   13	126     8.6000	0.00284	55  120];

Pd=1800; %Pdemand 
alpha=d(:,2);
n=d(:,1);
beta=d(:,3);
gamma=d(:,4);
Pmin=d(:,5);
Pmax=d(:,6); 
i=1;
Iteration=i;

%set Lamda 
Lamda(i,1) = 5;

%step 2 -- calculate P total 
P(:,i)=(Lamda(i,1)-beta)./(gamma*2);
P_total(i,1) = sum(P(:,i));
costI(:,i)=alpha+(beta.*P(:,i))+(gamma.*P(:,i).*P(:,i));
totalCost_iteration(i,1)=sum(costI(:, i));

%step 3 -- calculate error//delP 
e(i,1) = Pd - P_total(i,1);

%step 4 -- find new lambda 
if e(i,1) >0

L=Lamda(i,1)+(Lamda(i,1))*(0.1); 
i=i+1;
Iteration(i,1)=i; 
Lamda(i,1) =L;
elseif e(i,1) <0
L=Lamda(i,1)-(Lamda(i,1))*(0.1);
i=i+1; 
Iteration(i,1)=i; 
Lamda(i,1) =L;

end
%calculate P total for second iteration
P(:,i)=(Lamda(i,1)-beta)./(gamma*2);
P_total(i,1) = sum(P(:,i));
e(i,1) = Pd - P_total(i,1); costI(:,i)=alpha+(beta.*P(:,i))+(gamma.*P(:,i).*P(:,i));
totalCost_iteration(i,1)=sum(costI(:, i));
%step 5 -- find new lambda and P total until error =0
while abs(e(i,1))>0.00000000001 
i=i+1;
Iteration(i,1)=i; 
Lamda(i,1) =((Lamda(i-2,1)*(e(i-1,1)-e(i-2,1)))-(e(i-2,1)*(Lamda(i-1,1)-Lamda(i- 2,1))))./(e(i-1,1)-e(i-2,1));
P(:,i)=(Lamda(i,1)- beta)./(gamma*2);
P_total(i,1) = sum(P(:,i));
e(i,1) = Pd - P_total(i,1);
costI(:,i)=alpha+(beta.*P(:,i))+(gamma.*P(:,i).*P(:,i));
totalCost_iteration(i,1)=sum(costI(:, i));
end

%find total cost and total power
cost=alpha+(beta.*P(:,i))+(gamma.*P(:,i).*P(:,i));
TotalCost=sum(costI(:,i)); Totalpower= sum(P(:,i));
table(d(:,1),P(:,i),cost,'V',{'Unit' 'Power' 'Cost'})
display(TotalCost); 
display(Totalpower);

figure
plot(Iteration,totalCost_iteration);

title('Convergest Graph') 
xlabel('Number of Iteration') 
ylabel('Cost(RM/h)')

[Timo Dietz]

?? The code works fine for me (Matlab2018a) - no error message, plot is done.

Answer 1

[Cris LaPierre]

I suspect the issue is with your opening line. It is currently clearing a variable named clc. I suspect your intent is to clear your workspace and clear you command window. If that is the case, you must either put each command on its own line, or separate the two with a comma or semicolon.

clear
clc

clear, clc
clear; clc

% Not this. The purple text indicates clc is being treated as text
clear clc