Not enough input arguments

Hi all, I running this code here but it always shows not enough input. Anyone willing to guide me through this ?

I still unfamilliar with the array part. Thank you in advance.

function[ F ,P1 ,Pl]=eldnba(x)
warning off;
data=[0.000299   10.1   671   150   455
      0.000183   10.2   574   150   455
      0.001126   8.8    374   20    130
      0.001126   8.8    374   20    130
      0.000205   10.4   461   150   470 
      0.000301   10.1   630   135   460
      0.000364   9.8    548   135   465
      0.000338   11.2   227   60    300
      0.000807   11.2   173   25    162
      0.001203   10.7   175   25    160
      0.003586   10.2   186   20    80
      0.005513   9.9    230   20    80
      0.000371   13.1   225   25    85
      0.001929   12.1   309   15    55
      0.004447   12.4   323   15    55];
% Loss coefficients it should be squarematrix of size nXn where n is the no
% of plants
B=[ 0.0017   0.0012  0.0007   -0.0001   -0.0005	  0.0002
    0.0012   0.0014  0.0009    0.0001   -0.0006  -0.0001
    0.0007   0.0009  0.0031    0.0000   -0.0010  -0.0006
   -0.0001   0.0001  0.0000    0.0024   -0.0006  -0.0008
   -0.0005  -0.0006 -0.0010   -0.0006    0.0129  -0.0002 
   -0.0002  -0.0001 -0.0006   -0.0008   -0.0002   0.0150];
% Demand (MW)
Pd=2630;

x=abs(x);
n=length(data(:,1));
for i=1:n-1
    if x(i)>1
        x(i)=1;
    else
    end
    P(i)=data(i+1,14)+x(i)*(data(i+1,15)-data(i+1,14));
end

B11=B(1,1);
B1n=B(1,3:n);
Bnn=B(3:n,3:n);
A=B11;
BB1=2*B1n*P';
B1=BB1-1;
C1=P*Bnn*P';
C=Pd-sum(P)+C1;
x1=roots([A B1 C]);
% x=.5*(-B1-sqrt(B1^2-4*A*C))/A
 x=abs(min(x1));
 if x>data(1,15)
     x=data(1,15);
 else
 end
   if x<data(1,14)
x=data(1,14);
   else
   end
 P1=[x P];
for i=1:n
   F1(i)=data(i,1)* P1(i)^2+data(i,2)*P1(i)+data(i,3);
end
Pl=P1*B*P1';
 lam=abs(sum(P1)-Pd-P1*B*P1');
 F=sum(F1)+1000*lam;

Answer 1

[Star Strider]

Run this:

which abs -all

from a script or the Command Window, and post the results. I suspect there is another ‘abs’ function lurking sonewhere on the MATLAB search path that’s causing the problem.

.

[wyeen chow]

Thank you Star Strider. It does work, but will it effect my other part of the codes cause it based on a ant-lion optimization formula ?

[Star Strider]

My pleasure!

Re-name the additional ‘abs’ function to something else that does not ‘overshadow’ (conflict with) any existing MATLAB function, then update all references to it in the code that uses it. That is the only way I know of to solve those types of problems.

That could be tedious, however it is necessary. The MATLAB Editor can make this relatively straightforward to do, using the Find search-and-replace function in the top toolstrip. Only the function name, not the arguments, will need to change, so this should not require much effort.

.