Plotting curves requires 1 parameter

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lo
lo 2014-3-17
For the code below, I want to plot a x against H graph trying to find the minimal of H, so I wrote
ezplot(x,H)
And there is an error "Plotting curves requires 1 parameter." What is the correct code to solve this problem?
Here is the code:
O=[706;524;1072]
D=[1049,1142,766]
c=[7 12.4 19.9;12.4 7 19.1;19.9 19.1 7]
syms x
f=c.^-x
syms A1 A2 A3 B1 B2 B3
A=[A1;A2;A3]
B=[B1,B2,B3]
j=1:3;
A1=(sum(D(j).*f(1,j)))^-1;
A2=(sum(D(j).*f(2,j)))^-1;
A3=(sum(D(j).*f(3,j)))^-1;
i=1:3;
B1=(sum(A(i).*O(i).*f(i,1)))^-1;
B2=(sum(A(i).*O(i).*f(i,2)))^-1;
B3=(sum(A(i).*O(i).*f(i,3)))^-1;
for i=1:3
for j=1:3
T(i,j)=A(i).*B(j).*O(i).*D(j).*f(i,j)
end
end
for i =1:3
y(i)=sum(T(i,:))
end
for i =1:3
z(i)=sum(T(:,i))
end
for i =1:3
F(i)=(sum((y(i)-O(i))^2))+(sum((z(i)-D(i))^2))
end
H=sum(F)

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