Save variable from a for loop

Hello everyone, I have a problem saving the variable TWR as a value, although I assigned it in the last step. Maybe someone can correct the code for me. Thanks!

R=[0.15,-0.1, 0.08, 0.02, -0.05];
%K1=10000;
%qt=19;
Lh=-0.1;
c=0;

Matrix=zeros(100,1);
for i=0.01:0.01:1
    c1=c+i;
    HPR=(1+c1*(-(R/Lh)));
    TWR=prod(HPR(1:end,1:end));
    Matrix(:,c)=TWR;
end

plot(Matrix,c1)

Answer 1

[Ameer Hamza]

try this

R=[0.15,-0.1, 0.08, 0.02, -0.05];
%K1=10000;
%qt=19;
Lh=-0.1;
c=1;  % index must start from 1
Matrix=zeros(100,1);
for i=0.01:0.01:1
    c1=c+i;
    HPR=(1+c1*(-(R/Lh)));
    TWR=prod(HPR(1:end,1:end));
    Matrix(c)=TWR;
    c = c+1; % index should increment by 1
end

plot(Matrix)

[Sandro Hantke]

Thank you Ameer, now it works!

[Ameer Hamza]

Glad to be of help.

[Stephen23]

It is usually simpler and more robust to iterate over indices (rather than iterting over data values):

V  = 0.01:0.01:1;
N = numel(V);
M = nan(1,N);
...
for k = 1:N
    ... do whatever with the data:
    V(k)
    ... store data in output array:
    M(k) = ...
end

[Sandro Hantke]

Thanks Stephen for your comment. I will keep that in mind!