Not Enough Input Arguments

My problem arises from the very last code below: MATLAB is saying that I do not have enough input arguments. Any feedback as to why this may be would be appreciated.

function y=fixed_rate(fixed)

a=.0347;
c=1;
rho=.2442; 
K=100:100:2000;

S0=1065;
T=250;

r=.0125;
N=1000;
VL=.2^2;

epsilon_1=randn(1250,N);
rng(1);
epsilon_2=randn(1250,N);
rng(2);
V = zeros(1250,N);
S = zeros(1250,N);
for i = 1:N
    for t = 1:1250
        if t == 1
            epsilon1 =epsilon_1(t,i) ;
            epsilon2 = epsilon_2(t,i);
            V(t,i) = VL + c * sqrt((1/T) * abs(VL))* (rho * epsilon1 + sqrt((1 - rho^2) * epsilon2));
            S(t,i) = S0 * exp((r - 0.5 * VL)* (1/T) + sqrt((1/T) * VL)* epsilon1);
        else
            epsilon1 = epsilon_1(t,i);
            epsilon2 = epsilon_2(t,i);
            V(t,i) = abs(V(t-1,i) + a * (VL - V(t-1,i)) +c*sqrt((1/T) * abs(V(t-1,i)))*(rho * epsilon1 + sqrt((1 - (rho)^2))*epsilon2));
            S(t,i) = S(t-1,i) * exp((r - 0.5*V(t-1,i))* (1/T) + sqrt((1/T)*abs(V(t-1,i)))* epsilon1);
        end
    end
end

for i=1:1000
 for t=1:250
num_donom_250(t,i)=(log(S(t+1,i)/S(t,i))^2);
 end 
    
end

for i=1:1000
    var_250(i)=sum(num_donom_250(:,i));
end

average_var_250=mean(var_250);

for i=1:1000
 for t=251:500
num_donom_500(t,i)=(log(S(t+1,i)/S(t,i))^2);
 end 
    
end

for i=1:1000
    var_500(i)=sum(num_donom_500(:,i));
end

average_var_500=mean(var_500);

for i=1:1000
 for t=501:750
num_donom_750(t,i)=(log(S(t+1,i)/S(t,i))^2);
 end 
    
end

for i=1:1000
    var_750(i)=sum(num_donom_750(:,i));
end

average_var_750=mean(var_750);

for i=1:1000
 for t=751:1000
num_donom_1000(t,i)=(log(S(t+1,i)/S(t,i))^2);
 end    
end

for i=1:1000
    var_1000(i)=sum(num_donom_1000(:,i));
end

average_var_1000=mean(var_1000);

for i=1:1000
 for t=1001:1249
num_donom_1250(t,i)=(log(S(t+1,i)/S(t,i))^2);
 end 
    
end

for i=1:1000
    var_1250(i)=sum(num_donom_1250(:,i));
end

average_var_1250=mean(var_1250);

y=(average_var_250-fixed)*exp(-1*r)+((average_var_500-fixed)*exp(-2*r)+(average_var_750-fixed)*exp(-3*r)+(average_var_1000-fixed))*exp(-4*r)+(average_var_1250-fixed)*exp(-5*r);
end 

[Stephen23]

@Andrew Souphis: please show us in a new comment (not an answer) the complete error message. This means all of the red text.

[Andrew Souphis]

Not enough input arguments.
Error in dr_final_b (line 106)

y=(average_var_250-fixed)*exp(-1*r)+((average_var_500-fixed)*exp(-2*r)+(average_var_750-fixed)*exp(-3*r)+(average_var_1000-fixed))*exp(-4*r)+(average_var_1250-fixed)*exp(-5*r); 

Answer 1

[Cris LaPierre]

Too many variables missing to run your code. Could you at least copy/paste the entire error message?

What is fixed? It is not defined in the code you included. Is that a function expecting input arguments?

[Cris LaPierre]

Thank you for updating your code. Running it with dummy data did not produce any error messages. Could you please include

1. The line of code you use to call the function
2. What value(s) you are using as input to your function
3. The entire error message you are seeing

Answer 2

[Alan Weiss]

Running your code with the input value 0.01 (for fixed) gives me a complex output. This might be the issue: your code can return non-real output.

Alan Weiss

MATLAB mathematical toolbox documentation