Not enough input arguments error in function

Hello All,

I am very new in matlab and write the below function and i got a two errors

function y = organization_Performance_multiobjective (x)

y(1)=(-0.144*x(1)-0.077*x(2)-0.053*x(3)+0.097*x(4)-0.057*x(5)+0.066*x(6)-0.037*x(7)+0.142*x(8)+0.17*x(9)+0.048*x(10)+0.042*x(11)-0.011*x(12));

y(2)=0.235*x(4)+0.038*x(5)+0.248*x(6)-0.025*x(7)+0.155*x(8)-0.231*x(9)-0.054*x(10)-0.002*x(11)+0.012*x(12);

y(3)=0.047*x(1)+0.202*x(2)-0.053*x(3)-0.19*x(6)-0.061*x(7)-0.101*x(8)+0.074*x(9)-0.203*x(10)-0.066*x(11)+0.005*x(12);

y(4)=0.06*x(1)+0.058*x(2)-0.187*x(3)+0.002*x(4)+0.004*x(5)+0.41*x(11)-0.279*x(12);

y(5)=-0.04*x(1)-0.011*x(2)+0.002*x(3)-0.009*x(4)+0.104*x(5)-0.35*x(6)-0.038*x(7)-0.256*x(8)+0.164*x(9)+0.027*x(10);

end

and i give a arry to this function consists from 12 numbers and i got the below error

Not enough input arguments.

Error in organization_Performance_multiobjective (line 2)

y(1)=(-0.144*x(1)-0.077*x(2)-0.053*x(3)+0.097*x(4)-0.057*x(5)+0.066*x(6)-0.037*x(7)+0.142*x(8)+0.17*x(9)+0.048*x(10)+0.042*x(11)-0.011*x(12));

Answer 1

[Alan Stevens]

The following works for me (I['ve chosen random numbers for x as you didn't say what ones you used):

x = rand(1,12);
y = organization_Performance_multiobjective (x);
disp(y)

function y = organization_Performance_multiobjective (x)
y(1)=(-0.144*x(1)-0.077*x(2)-0.053*x(3)+0.097*x(4)-0.057*x(5)+0.066*x(6)-0.037*x(7)+0.142*x(8)+0.17*x(9)+0.048*x(10)+0.042*x(11)-0.011*x(12));
y(2)=0.235*x(4)+0.038*x(5)+0.248*x(6)-0.025*x(7)+0.155*x(8)-0.231*x(9)-0.054*x(10)-0.002*x(11)+0.012*x(12);
y(3)=0.047*x(1)+0.202*x(2)-0.053*x(3)-0.19*x(6)-0.061*x(7)-0.101*x(8)+0.074*x(9)-0.203*x(10)-0.066*x(11)+0.005*x(12);
y(4)=0.06*x(1)+0.058*x(2)-0.187*x(3)+0.002*x(4)+0.004*x(5)+0.41*x(11)-0.279*x(12);
y(5)=-0.04*x(1)-0.011*x(2)+0.002*x(3)-0.009*x(4)+0.104*x(5)-0.35*x(6)-0.038*x(7)-0.256*x(8)+0.164*x(9)+0.027*x(10);
end 

Answer 2

[Jan]

How do you call this code? Do you use the green triangle in the editor? Then the function is called without input arguments. See Alan's answer for an example, how you call the function with an argument.

By the way, compare:

y(1)=(-0.144*x(1)-0.077*x(2)-0.053*x(3)+0.097*x(4)-0.057*x(5)+0.066*x(6)-0.037*x(7)+0.142*x(8)+0.17*x(9)+0.048*x(10)+0.042*x(11)-0.011*x(12));

with:

y(1) = [-0.144, -0.077, -0.053, 0.097, -0.057, 0.066, ...
        -0.037, 0.142,  0.17, 0.048, 0.042, -0.011] * x(:);

I think this is easier to ready.