repeat n times vector with name index

i hope someone can help me

i need to repeat these 4 lines of code n times with the variable {i} changing from 1 until n

E{i}=trapz(days,D{i});

e{i}=D{i}(1,1);

ee{i}=D{i}(5,1);

Etotal{i}=E{i}A+570*e{i}+2330*ee{i};

D{i} is a series of data vectors imported ( D1 D2 .... Dn) (the index "i" in this case refers only to the name of the vector)

[Stephen23]

"D{i} is a series of data vectors imported ( D1 D2 .... Dn) (the index "i" in this case refers only to the name of the vector)"

Best solution: fix the data importing, so that you are not forcing meta-data into variable names. Use indexing.

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

Answer 1

[Fangjun Jiang]

for i=1:n
    E{i}=trapz(days,D{i});
    e{i}=D{i}(1,1);
    ee{i}=D{i}(5,1);
    Etotal{i}=E{i}A+570*e{i}+2330*ee{i};
end

[charles aouad]

thank you @Fangjun Jiang i tried this but i get the follwoing error in the second line:

Brace indexing is not supported for variables of this type.