How can I fix this error?

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Razvan Tataru
Razvan Tataru 2018-5-28
评论： Razvan Tataru 2018-5-28
Hello everyone
function [cost] = costf(x)
global data; global finalcost;
% Compute individual differences
% Sum of squares performed by Matlab's lsqnonlin
for i=1:length(data)
cost(i)= data(i, 5) - call_heston_cf(data(i, 1),x(1), x(2), (x(5)+x(3)^2)/(2*x(2)), x(3), data(i, 4), x(4), data(i, 2),
data(i, 3));
end
% Show final cost
finalcost =sum(cost)^2
end
I have this code for calibration of Heston price and I get this error (for line 6 and 7):
Error: File: costf.m Line: 6 Column: 121
Expression or statement is incorrect--possibly unbalanced (, {, or [.
and also it says Parse error at <EOL>: usage might be invalid MATLAB syntax for line 6
and
Parse error at ')':usage might be invalid MATLAB syntax for line 7.
I'm really new to MATLAB and I really need your help.
Thank you for your time!

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采纳的回答

Walter Roberson
Walter Roberson 2018-5-28
You split the code over multiple lines without using ... to indicate that the line was being continued. You should put all of that code of line 6 onto one line.
cost(i)= data(i, 5) - call_heston_cf(data(i, 1),x(1), x(2), (x(5)+x(3)^2)/(2*x(2)), x(3), data(i, 4), x(4), data(i, 2), data(i, 3));

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